i use the dunop tortex .60 mm it is the right thickness where it is flexible but stiff and it has a relly nice finish that make the sweat resistant and and really comfy to hold
I use the Dunlop stubby 3mm, I like the thickness. There's really nothing like “the best pick” because everyone has a different taste. I would suggest buying some different plectrums in varying gauges and size to See what you prefer.