For me it varies for the situation and depends a lot on what tone I want. if I want a smoother tone I go with my fingers. If I want to attack the strings more and put more energy in it then a plectrum gives me a more satisfying tone overtime. I have a 2mm plectrum that I especially love.
Same. I really only use a pick with playing heavier metal and faster music. Otherwise I'll pass on using a pick. Plucking and slapping is the way to go.
Since I'd played guitar with a pick, I began playing bass with a pick. Had a year between bands and then tried fingers. I really Njoy playing with my fingers! Being able to feel the strings allows me to play with much more feeling and dynamics. BUT for songs with many/fast bass notes, the pick gits r dun.