My favourite reds are, in order of brightest to darkest:
Essie Lacquered Up - amazing, very bright red, best application/finish of any nail polish I've ever had
OPI Vodka and Caviar - just beautiful, classic blue-red, shiny jelly finish
OPI Quarter of a Cent Cherry (very similar to Got the Blues for Red, but I find Got the Blues a bit patchy even after two coats)
Essie Bordeaux - very shiny and jelly-like (I love glassy, jelly finishes)
Chanel Rouge Noir (maybe too dark to count as red but has red in its name!)
Also love China Glaze Ruby Pumps - deep red and very glittery, it glows!