I like the show and tell the best. Also the gals at the "quilt club" (it's not a guild, just a group of about 30 people that meet at a LQS) always have something positive to say about anything that is brought to the club for show and tell.
I had a bad (IMHO) experience at a guild where no one acknowledged me or barely spoke to me in almost a year. Very cliquey. I've been meaning to try another one, but am still reluctant at this point. Not too long ago others recommended getting involved when you join as a way to worm your way into the group. So....that's the strategy for next time!