As long as shaders are set to medium or higher, low graphics look just fine.

Low looks like a cartoon, and ultra is overly detailed, which really takes away from the appearance just as much.

If that's ice, low wins, hands down. If it's snow, ultra is the best choice.

at first I thought low was a lake, then I looked at ultra and realized it was snow and ice xD

I would be heartbroken if I could only play on low, but my computer sucks so I'm at medium. Ultra looks really sharp and I'm sure High is just as fine. Although High is less detailed it takes less time to get used to. Of course though if I had the ability I would choose ultra just to play SC2 at it's highest potential

My new computer, sir, only runs the SCII Beta at Low. Show some gratitude, mister!

My new Computer can run it on high with stable fps during the campaign (after you use vsync or framecap).
So now I can say, high is better ;D

I play at Ultra because otherwise, I feel something tickle in my brain.

Damn OCPD...

I always play at Ultra, so Low looks... weird...

And I like the ice tileset.

Ofcourse ultra looks better... its ultra my computer can only handle low.. =.= it can run medium but it lags... screw you 256mb graphics card! D:

Ultra defiantly looks best

Mine has 256 MB vRAM as well and I always play on high textures with no lag at all, even late games (around 200-300 units at the same time on your screen)

I just noticed low looks cartoon-ish 0_o...