Jar of flies for gif magic in timely fashion 
Hocky is definitely the funniest poster on here. That guy has a rapist's wit and nearly everything he posts has me lol.
JOB, D241 and JeffersonDarcy's Choke are my other top picks because their posts are "virtually identical" to what I'm thinking most of the time except they can phrase it a lot better than me.
Then there's obviously the UG all-stars of DS, Pro-ice, 2-Jupes, and RR.
Calo was also great. Did he get banned again or did he just leave?
Pro Ice, superCalo, EVILYOSHIDA.
All three are champions in their respective forum disciplines.
ShanTheMan - Right now it is Hocky Balboa.This voted up
Dude is always fucking funny.
Kirik, because he is going to give me a free blue name for life.
Jack Motherfucking Slack is the best poster here or anywhere if you actually want to learn about what you're watching.
myself.
Card; always contributing.
JimmersonzGlove - Tsigor
Without a doubt this 
Crooklyn gets an honorable mention also.
(Sorry took so long, Crook
Card for threads.
Jar of flies for gifs.
LnP Ninja for discussion. I generally agree with him and he's already posted being 1000x more active than me - no homo.
Also jack slack deserves a very honourable mention for by far the best on breakdowns.
Tttt