reply to DarkLogix
Re: [Poll] First to MoP That's my point. The only way 25 mans work is to have better items in them. It's why they worked in Wrath. It doesn't need to be literally EVERYTHING, but if you say "you only get your BiS weapon, which is a
legendary elite, from consistently raiding 25 man", you will have a lot more people willing to handle the organizational restrictions involved in getting those groups/guilds together.
Still all speculation. Drops in beta are probably all whacky to ensure the quests get tested, or just to get feedback on possible situations.