If you were a begginer I'd say buy a set of Dunlop Tortex 1mm and just get used to them, then later on decide.
But Dunlop Tortex work great for me, I used Jazz IIIs for a while, thought it was great for my playing because I was doing alot of shred and it improved that but really it wasn't doing much.
I'd avoid sharp picks because, allthough they're easy to pick fast with and feel really nice to angle, there's really not very much material hitting the string which some would say isn't good for your playing, I'd agree with that statement but to each is own.
Look at (if you're sticking to Dunlop, which is my favourite pick manufacturer)
Dunlop Tortex
.73 Yellow
.88 Green (What I use)
.100 Blue
When I was getting relly into metal and such and was a bit sloppy, I liked a really rigid pick, and I still do for rhythm chugging, more complex picking patters don't work as well for them. I went Dunlop 500 1.5mm, Dunlop 500 1.14, Dunlop Tortex 1.14, then 1mm, and now .88. The .73 are really flexible, too much for my taste, if there's an in between gauge I may try it, I don't wanna follow my trend too much though.
I might note I went from using 10 - 11 gauge strings when I used 1mm, I use 11s now and prefer .88. If you're using heavy strings then lighter picks are a bit easier, to my playing style anyway.
BUY LOADS AND SEE WHAT'S BEST FOR YOU! I know deep down my info is useless.
