It has been a long time belief for me, that 10 man instances, are harder as you have less room for error then the average 25 man raid. I have recently come to understand this is not necessarily the case. It is significantly easier to coordinate 10 people, then it is 25 mans.
It would seem that many people have become complacent, or accepting of the idea, that gear be it, lvl 245, or 251 is sufficient. Most of this gear can be acquired by Triumph or Frost badges. Why quit there? Why not head into Icecrown Citadel, see the content, kick the Lich King, and get more gear, see some ugly monsters, and have a good time. There is much to see in the Citadel. Many people have found this new add-on relating to gear score is the end all be all of raiding. While gear score does play a role in raiding, it does not mean that a player not be worthy of the experience. Don't get me wrong, gear does play a role, but gear does not make the player. While it does insure a certain level of acomplishment, why settle for the minimum. The other thing that I don't like about this add-on is that. Anyone could say. ICC 10man Fresh run, must have GS 6k. What they don't tell you is, that they just bought their account, or have less then the GS they require, and are looking for free loot.
Several weeks ago I was invited by chance into a PuG ICC 10, with several members from the guild Distorted. For the first time, I got to see bosses past Marrowgar. This was a truly exciting time for me. Since then the past few weeks, have been an eye opening experience. Raiding with Distorted. A group of highly skilled, patient, and dedicated people - they are what raiding should be all about. Having seen both 10 man and 25 man Icecrown Citadel has been the experience I was hoping it would be. Though the continual repetition of dialog from the NPC bosses can be - annoying at times, over all the interaction is nothing short of fun.
MARROWGAR
Marrowgar can be a boss that will undo most raids with the whirlwind, and the AoE fire. Causing most groups to scatter, become distracted, and disoriented. Thus bringing an quick and abrupt end to the raid. No one likes repair bills, lets face it - that is a fact.
However, if you keep your cool, and stick to the plan, Marrowgar is a push over. Most people recommend that everyone be at least 4k dps, while this will help, and becomes more important in later fights, you can drop Marrowgar with patience, some skill, and coordination.
LADY DEATH WHISPER
Lady Death Whisper - well she's just a push over. The simplicity of this fight can be confusing, or a straight up win. Melee takes down Melee, Ranged drops casters. Unless a skeleton is raised,then it's opposite time.
In between groups of adds, DPS should be focusing on Death Whisper's shield. It is imperative that you have someone watching the shield to ensure it does not drop until all the adds, have been handled. Once the shield is down, it's an old fashioned tank and spank, eith the exception of her Frostbolt. The unique thing about this, is it is perfectly timed to the Deathknight's Mindfreeze. When your Mindfreeze is up, she's casting a frostbolt. Nail her! This will save your healers, and your raid.
The Airship Battle
It's a pretty straight forward fight. If you consider hopping from the Sky Breaker, or Orgim's Hammer straight forward. You have a Tank, tank Surfang, while the DPS drops the battle mage.
Ranged sits in the cannons, and fire on the enemy ship.
More or less it's free loot.
At this point, it gets to be a bit - odd. After the battle at the Wrath gate, Varian goes ballistic, and declares straight up war on the Horde, then after the air battle he gets all sentimental. I wonder if he's bipolar...
Surfang Jr.
He's a tank and spank, and crowd control the adds. This particular boss, is where the a fore mentioned DPS comes into play. As he does have an enrage timer, and most bosses here on out, have something of the sort.
At some point you should have if not already hit Friendly with the Ashen Verdict. It is important if you are either a Warrior, Paladin, or Death Knight. Each step of the way with this faction you can trade up a ring, similar to the way you could with Karazhan, back in The Burning Crusade days. Eventually you will reach Revered. Once you have, Darion Mograine will have a quest for you.
This particular quest is reminiscent of the old Thunderfury the Windseeker quest. It will require you to acquire 25 Primordial Sarronite, Lights Vengeance.
Light's Vengeance is where this particular quest becomes of personal interest to me at least, As I am always intrigued by the implementation of Lore into the World of Warcraft. Anyway, Light's Vengeance is Arthas's mace from when he was a Paladin. It can be found in Frostmourne Cavern. If you are not particularly confident in your abilities, or have gear, that is - well less then adequate, I would recommend that you find a friend or two, maybe a pally, if you are not one, and a healer. However if you have been raiding the Citadel, your gear should be sufficent to get you through this.
When you enter, the cavern will be empty. As you approach the mace, the Lich King will appear, there is some dialog here, that more or less points to the fact that Arthas knows about the plans. Indicating that Darion had this planned for some time. Likely while he was still under the Lich King's control.
The Lich King will throw the mace to the other side of the room, and raise a significant number of undead, and one Elite to thwart your endeavor. Drop the elite, and make your way to the mace.
Once you get the mace, and the saronite, you will need to get blood off of Festergut, and Rotface. Not to worry there is nothing special that you have to do during the battle. The blood drops as a quest item.
Once you acquire the blood, you can turn the items in to Darion, well his forge. Once this is done, you get to listen to Darion, advise you further on the situation. His tale is one of caution. After listening to Darion, you acquire Shadow's edge. This weapon is probably the single most devastating, and truly awesome weapons currently in the game.
The quest goes on, to have you acquire 1000 souls from the scourge in Icecrown Citadel. This part of the quest seem eerily reminiscent of Arthas's fall from grace, in his acquisition of Frostmourne.
Eventually following this quest you will receive Shadow Mourne. Anyone who wields this axe in any form, is unmistakably noticeable. The final piece of this unique weapon is the goats head hilt from Frost Mourne.
Raiding, questing, for a truly bad ass weapon. It all ties in nicely. Blizzard actually accomplished something on this particular expansion.
So many seem to think that they can form any guild of 10 people, and clear ICC. While some may very well succeed, I would much more encourage people to return to guilds with a track record, of success. If seeing, or experiencing the content of the game is your desire. I encourage you to follow through, make new friends, find a guild that suites your needs, and accomplish your goals.