a little bit of water and sand becomes wet dirt,

clayface would win

but sandman is still somewhat cooler

Sandman is LAME

They might get mixed together like Sandman and Hydro did. If I remember right, that wasn't pleasant for either party.

I don't know of any canonical ways to kill either of them, but since Sandy can absorb sand to add mass, as much as I think Clays from Batman TAS is an amazing character, I think Sandy would probably be able to at least contain Clayface.

Hard to say, though, since Clays seems smarter. That would be a fun comic, for sure! Well, fun or confusing, like Batman vs. Spawn: Battle of the Out-Of-Control Capes!

can't decide. great idea though

I think Clayface would be able to envelope and smother Sandman.

Damn, neck and neck!

i think if the two would fight each other, clayface would win because mud can absorb dry sand; and both can't be defeated by normal means.

I like them both one is a hard butt and the other one just slips through your fingers. They're both cool.

I like clay better.