Will repeat the same thing that people told me on here for 2 years while waiting for my turn to order, during which time I changed color multiple times and wound up with a top 3 list until the family could see all 3 side by side at a US dealer. It is your car, and you will have to look at it daily. So depends what YOU want. If you want a Ferarri look alike, go with the red, if you want something that stands out and is more in your face, go with the blue. I can tell you from personal experience that people cannot stop complimenting the blue, just because you just don't see the color too often, with everything blending in together with the usual palette of colors on the road. The red gets attention too no doubt, the blue is just more unique (but you have to like it).
And if that is not enough, well will repeat what a fellow RB owner told me, RB is faster