I think pick choice is a very personal matter, depending on style, guitar played, amp and effect settings, and other factors. Generally, I use Fender medium celluloid picks -- but I mod them by shortening the point and rounding it slightly, and drilling several holes in the grip surface to help my keep my grip with sweaty fingers. With these, I can strike the strings with the full side of the pick and achieve a nice pop or twang. Or I can angle them slightly and go mellow. I pick out the confetti color when I can find it, because they are colorful and easy to spot when I lose one. (I lose more pick than I break. Actually haven't broken a pick in 50 years.) When I want "shred speed" I can use a rounded triangular "K Pick" which is made of plexiglass and is pretty thick and tapered at the striking points. They just glide over the strings, BUT make a slight clicking sound when they strike. So while they are useful to me, the use is limited.