My picking style is kinda hybrid but lacks the discipline that true hybrid pickers have - I'm really pretty much all over the place. I do a lot of playing with no pick at all - just fingernails and flesh.
One of my standard pieces of advice to anyone who doesn't like the attack their amp and/or pickups give is to invest 75 cents in a heavy pick or start using their fingers to pluck the strings before dropping a pile of dough and headache into a new batch of electronics.
I have so many damn picks of so many shapes and sizes it is hard to say what my favorite is. But for electric I tend to like a really thick pick with rounded edges, one of your 1.5 mm dunlop tortex guys, something like that. For acoustic strumming and flatpicking, I like a really rigid pick, but thinner. I also sometimes like the Jazz I, II, or III picks - I find them pretty useless for strumming because there isn't enough to hold onto, but they make for nice linear single-note and hybrid picking. I will say this: Anything slimmer than a Fender Heavy feels flimsy and cheap in my fingers, and it drives me a little nuts to try to get some tone out of them.
There was a while there in the early years of my guitar journey when I was enjoying metal picks on my electric, but they chewed the hell out of my strings and after a while I quit using them, although I did like the aggressive attack.
I've also had some luck with the David Grisman mandolin picks in fake tortoise shell. They're more of an unbalanced circle with a nipple, rather than the rounded isosceles triangle most of us are used to.