I like 2 and 4 myself. I think with a hot rod the color should make a statement, flat paints look cool on 50's style cars. On pre-40 street rods I like simple bright colors, candys are cool (and not simple) but stay away from the chameleon affects from pearls. I also like simple graphics like old school flames, scallops and pinstriping. I dont like "real" flames on most of these rods but I have seen ones that I like as well. I am not a fan of yellows or light greens so I stay away from them. Lots of reds, blues, and even some oranges to work with.