Personally, I love my Vista Blue without the stripes. But then again, I also LOVE mine without the spoiler which others hate. So to each his own I guess.
In my opinion, the plain white stripes really pop off the car. "Standing Out" isn't a strong enough term. If I were to put stripes on m car (even though I wouldn't), I'd look for either a pearl white or a silver color. Both will look quite nice with the Vista color, but will also reduce the stark contrast between the plain gloss of white stripes, and the heavy metallic of the vista blue, that makes the plain white stand out so much. Just my $0.02