Noob here with a mostly jazz and some blues/r&b/and rock on the side. I play mostly with fingers, but occasionally use a pick (a real one or since I'm Canadian - a loonie/toonie depending on what's in my pocket
)
Two players I've learned a lot from are:
Jaco Pastorius (he must have 7 fingers on each hand)
Steve Swallow (the most amazing jazz bass sound while using a PICK!!!)