If you are on a PvP server like me, then you've probably seen all hell break loose outside ICC this past few days. If your faction is losing the new battleground "ICC portal" there is a way to massively reduce your chances of being ganked.
This requires crusader rank at the argent tournament, but you can pick up the "Battle before the citadel" quest. This quest will put you in a different phase to those without it and from my experience you will be in the VAST minority with this.
You will see far less people when trying to get into ICC so this will give you a much easier time trying to enter your raid.
Searched: Icecrown phasing and battle before the citadel.