I do like using a variety in Sogo's myself, but I can say I have the MOST fun using a Pistol. Especially when going against a big number of guys that are still shooting full auto AEGs in there.
Now, I am very uncertain of AEPs myself. I've not seen any good ones being used I don't think. Low low FPS, small cell , small out put batteries.
GBBs, I don't own one, but my team leader Cody has quite a few. I do like them now I've played with those in Sogos a few times.
I have a NBB , it was decent, until it's fixed hop-up system went to crap our last Trigger Day. They don't make the gun I have anymore, so finding a replacement part might be near impossible.
I'm hoping to be able to convert my NBB to a GBB , but will have to have Cody look at it to see if it's even remotely possible. If so, I can fix the hop-up because then the system will be slightly different with new parts. Mine has a slide system already, it just doesn't BB.
My favorite pistols in airsoft have been the glocks, and the P229 series. 1911's run a second to them.
I tend to like the compact shooters.
I've been considering getting some revolvers... but I am a bit worried that they would be all junk. I think it'd be fun having to switch out shells and such while playing though.