Well, if you want my opinion I'd have to say that there is only one other choice other than the BadHorsie. Which is your choice of one of the snarling dog wah pedals. They have, I think, four different pedals and each one has a very unique sounding wah to it. But you just can't beat stepping on the pedal to activate the BadHorsie, besides it sounds killer.
I'm off like a herd of turtles in the moonlight!
Ain't nothin' but a Gear thang, baby!