Jazzy,
The short answer (and you're not going to like it)is Whatever sounds best to you.
I've recorded direct, with nothing between the Bass and the mixing desk, and it sounded good. I've recorded using my Amp, DI AND miking the cabinet, and it sounded good, but different. I've also run stereo, bass side to bass amp DI'd, treble to distorted guitar amp miked, and it sounded, you guessed it, good but different again.
How's that for a non-answer!
Ken