I prefer the Yellow, mainly the srixon Tour Yellow.
And yes i do think I play better since I have more confidence with the Tour yellow and can track them better in the air. It allows me to focus more on the swing and not having trouble tracking the ball.
I voted white because it's what I play most often, but I don't have a preference, I'll play just about anything, I haven't found any of those visual type things to make a difference for me while playing. But I have found some of them to be a negative while looking for the ball!