I would prefer a 10man raid for preference/computer performance related reasons, but I'd be willing to try out for a 25man guild if people were able to bear with me as I adjust to that kind of raid environment, if the guild is nice/supportive.
I would prefer a Horde guild with a good raid environment that isn't too nasty/ trask talky, though I can deal with language and stuff, as long as people aren't screaming like Troxed or the 50 DKP minus guy. (had my fill of that in Vanilla/BC) and hopefully if I server transfer and If I end up not being up to the guild's standards, it's still a good server that I won't feel like crap for moving.
I'd also love a chance to talk with someone before I decide on moving (Hey, it's 25 bucks, and 50 bucks if I end up going back to Thorium.) *I should note that I'd prefer a casual schedule, but I can try to be hardcore if you need me to be super-good if you have patience. I haven't played in a real hardcore raid since.... BC. I just don't know if the "4-5 nights a week" stuff is something I can really do anymore.