| In the words of a bass teacher I don't remember:
If you like the sound your bass makes when you smash it in a wall, then you are playing it right. It might just be a little too expensive per song.
Meaning that however you play it, if you like the sound or if you play the song right then who the hell can complain? Thats why even though pick playing is a little frowned upon, there is no law against it.
So for the 3 fingers, it's up to you. I love it, it's free triplets for everyone! You just need to practice it, alot! Because three happens to be an odd number and if you're playing a riff with an even number of notes, it's going to mess you up. Why I do at this point is a hybrid between the 2. Don't go for perfect 3 fingers.
This is what I do.
---5---3---2---0---5---3---2---0
---R---M---I---R---R---M---I---R
Ring, Middle, Index
This is what Victor Wooten does:
---5---3---2---0---5---3---2---0
---R---M---I---R---M---I---R---M
Actually he might go 3-2-1-2-3 (fingers) but.. you get my point.
Edit: You know what's weird? My index used to by my main finger, like whenever I screwed up a pattern, the index would be the one who plucks twice in a row, now it's my ring finger.
Do the 3 fingers, it's awesome. | 
