Anything with void makes any set look cool
but void is just so much -.-

I like pure because it goes good with rainbows, and i like rainbows.

i like the pink in this game XD because it matches my clan name

Only colours I bought with TC was full glads and full quicksilver.

I kinda bought sapphire, but it was full sapphire for 100 tc (this was back when sapphire was worth something, before it was a promo).

Sapphire is pretty much my favourite colour, but I dont use it anymore because after many many months of complaining they never fixed it so the grads are the same colour as the joints, so it looks horrible ingame.

I think a glowing light blue colour would be awesome, something like 'Ethereal' or 'Sky'

Most green and bluish colors, really. Like my current Radio/sapphire combo. Radio for the eyeraping and sapphire for the coolfactor. :U

grayscale colors: platinum, quicksilver. pure.
velvet is cool with them.

I like pure :3

Demon force with Platinum relax looks hella cool ingame, that's what I wear :B

I liked Gaia force with Noxious relax as well.
And the default force with Neptune relax is awesome as well ;)

Personally,void is just too dark for me.Demon is the perfect colour,I believe.It fits with nearly everything.
Most is probably orc as Mwah said but the most bought as in most TC was spent are probably void and demon.
I love blue colours,maya,raider,azurite,sapphire.Alpha imperial is my favourite.

of course Qs :P, and when it's qs force ;]