There's no definitive answer for me, my tastes are in constant flux.
As an example, for years I found Rickenbacker 4001s & 4003s to be unspeakinkaby ugly, then one day I saw one in darkest blue & fell instantly,inexplicably, head over heels. If I'd had the funds I'd have bought it on the spot, about 30 seconds after seeing it, probably without even trying it out.
I also used to be pretty indifferent towards Jazz basses. Now I own 2 & think its generally just about the sexiest shape around.
My love is fickle.