My pick of choice used to be the traditionally shaped 2.0mm Big Stubby in Lexan, but I've been trying a bunch of different picks recently to see if i can find somethign I like better. I've yet to try the V-Pick, so maybe I'll give them a try next. I've tried the Adamas and really like their tone, but I find I'm a bit clumsy with them. It isn't their thickness per se, but maybe the breadth of their edge? Lately I've been using the Dunlop 3.0mm Tri Stubbys, and am really enjoying their feel over the strings, as well as the tones I hear when I play with them. I also like their edge.
I see Dunlop has recently re-engineered the Big Stubbys in nylon, so I may try those, too.