I'm not partial to whites and the pale ones... they look unnatural to me, and many of the ones I've had a good look at are mildly deformed.
I have one, though, as I've always been unable to control myself when it comes to feistiness... He was this jaundice color with dark splotches when I got him, but there were cups and cups of dead fish and clamped fins, and there he was, all like "I'm not dead, I'm not dead, look!" and I was like, "he's alive, gotta keep him that way"
He's a sweetheart and has darkened considerably... he's kind of a hot cocoa color, with transparent fins and dragon-pattern has gone black. He's a little on the small (and short) side, with a veeeery slight bend to his tail, but I've decided that as far as culls go (that's what all PetSmart bettas are, at least in my area) he's not a bad fish at all.
Oh wow... shut up, right? <<<--- I just signed up... am enthusiastic. =D