I usually take two basses to gigs.... a flat strung P and a round strung J.
These days, it's
1) a '08 Fender MIA P with Chromes. I just recently put in a '62 P pup, and it's absolutely beautiful sounding.
2) a '97 Fender AmDlxJazz V currently strung with D'Addarios XL's. I can't believe I have settled into a 5 string, but this thing sounds crazy good, and plays so nice. I tend to play it like a 4 string, with only occassional forays onto the B string. Tonally, it kinda sits right in between a P and a more traditional J. I can understand how a J purist wouldn't be into this..... thankfully, I'm not a purist!
All that said, if I could only keep two of the six I currently own, I'd have a melt down, because I'm having trouble thinning it down to just 4 as it is!