I like being the center of attention from multiple guys
Orgy. Orgies seem to be more organic in that people can join in as things progress. I've been in situations where I'm with a guy, and another guy or a couple come into the room by mistake -- and then the fun starts. Getting together with 2 or three other people is orgy-like -- things are under control. Gang-bangs are an occasional fantasy. A girl and I did one in college on a dare - i was fun, but there was so much activity it was hard to know who was where and doing what. The only thing for certain was a lot of cum and a lot of cock.
I prefer an orgy.