Originally posted by noticingthemistake
A pick will give you a more mid-range rhythmic sound. If you use your fingers, you'll get a fatter and boomer sound.

Not exactly true.

I can just as much mids out of my strings with my fingers (by slapping, using more attack or letting my fingernails get a bite on the strings) as I could by using a pick, but also a bit more lows than you could get with a pick.

So it's not quite the same tone as using a pick, but it's close, and I think a little better.