Why mess with a good thing? I personally don't think they should change it.
BUT, if I had to, I would actually go really really really really really old school and give him his costume from the 1940 cartoon series.
The emblem is outlined in yellow, the inside is black and the costume and cape are a bit darker overall, and why not give him the squinty eyes?
I can see it now....... "Action Comics: Old School" I'd go for that.
he'd lose the cape, spike his hair, metal gauntlets cuz they look cool, every where on his old costume that used to be blue would be black, the "s" symbol would be HUGE and cover his whole chest and most of his abdomin, his yellow belt would be thicker,he wouldn't have a seperate color for his underwear on the outside thing....
Keep him red and blue. That remic pic up there looks sweet. I'd keep him red and blue, and keep the cape, definitely. The long red cape is the best part of Superman.
No yellow, just red and blue. His hair is fine. Get rid of the yellow and the underpants over the costume.
Spiked up hair? This isn't Beyblade or some crap anime.
MAinstream costumes:
http://jerome.galica.free.fr/dc%20comics/Superman/superman.htm
Elseworlds
http://jerome.galica.free.fr/dc%20comics/generations/elseworlds.htm
http://jerome.galica.free.fr/dc%20comics/generations/sonofsuperman/sonofsuperman.htm
http://jerome.galica.free.fr/dc%20comics/Jla/onemillion/onemillion.htm
http://jerome.galica.free.fr/dc%20comics/Kingdom%20Come/kingdomcome.htm
I say keep the colours and cape. Lose the belt and underwear. Make him a touch more rugged, but realistic enough to keep attention. As stated before, Supes can't get spiky hair. But I also hate all the 'aura's, you know?? All that gay static?? And while youre at it, spike his personality a bit. Make him badass.
Has he really?? Sick!!
Anyway, I like that costume, Hotsauce####(not willing to remember anything more than 'hotsauce' and the fact that it is followed by numbers. Sorry.lol). The line indicating that the suit is both pants and shirt pleases me. My only problem with it is the size of the S. It covers too much of him chest IMHO. But I'm a ruff critic so...