For me it depends on the bass. I've got a natural finish, maple body, heavily lacquered p bass. I shouldn't like it at all, but I love it. I quite like sunburst, I've got a strat in burst with a black guard, love that one to. I love my black with tort guard jazz bass.
My son has a Squier Mustang guitar in orange with a double red stripe, looks cool as.
I'm currently trying to suppress GAS for a Cort A4...in matt stained red with that awesome 5 piece thru body neck. Phwoar!
I'm not mad on pink. But the only finish I'd not consider is exotic woods, especially burl finishes. That's about it.