What Else Sounds Like A Wilson Watt?

I'm currently using Wilson Watts as my main speakers (no puppy's) and am considering adding a third speaker to use as a center channel. I'd like to have the three speakers across the front as closely matched as possible, so a third Watt would be ideal, but Watt's without the Puppy's are pretty rare.

So, I'm looking for alternatives... what other speakers out there sound sufficiently close to the Watt such that they could be used as a center channel alongside a pair of Watt 5's?