Mine are red front, yellow rear, both plus. I like that the plus had outside pockets already on them (at least when I bought them). Plus closure is a bit more intuitive than classic, but neither is difficult.
As for color, get something bright. You never know if/when the ass in the jacked-up dually will only notice that bright patch of color up ahead. (And the blue probably won't match the bike, and it sure won't after it fades in the sun on tour!)