I have a 2008 mazda 3 want to upgrade the pretty hopeless standard system, I already have a pioneer 4 channel gmd8604 1200 watt amp, , with no sub and the factory HU what are the best speakers to use 6x8 or 6.5 either way what speakers to use, have already looked at a few including

Alpine type s 5x7
Infinity kappa 680.9
JBL P8662
JL c2570x

Alpine type r comp
infinity kappa comp
JL c2600 comp
Focal 165A1SG comp