This is rather odd. Your topic and your poll seem to be on two different things. First of all there's how one would spell dwarf (I guess that right there gives you my answer to how *I* spell it), and then there's this whole thing in the context about "what do you think is the funniest way to spell dwarf?". So, in regards to the poll, I'm going to have to go ahead and take the liberty of saying, "I'm confused!". There, how's that for an answer?
What, you're still here? Well, I suppose since I've never seen dwarf spelled any other way besides "dwarf" and "dorf", the funniest version would be the latter. Okay, time for a new poll, how do you pronounce Trow?