Hmm I'm coming from the bass world so..
On the high end.
The Source Audio Hot Hand or Their Soundblox Tri-mod wah.
Fantastic range of wah sounds including reverse etc. can be set for very subtle sounds or wah in every note. Frees up your feet for dancing,
Can be used with an expression pedal if you have to be attached to your feet.
Oh can be used as an expression also.
On the down side, It's expensive, slightly larger than one of Devi's double pedals (side ways) and I haven't been able to set a cocked setting.
The soundblox is smaller.
http://www.sourceaudio.net/products/hothand/wah.phphttp://www.sourceaudio.net/products/sou ... od_wah.phpObviously I'm in love with mine.
Musicians Sound Design Earthquake bass wah or Silvermachine guitar wah.
http://www.silvermachine.de/en/quake.htmOk I found mine on the bay and got it for very little $$ otherwise I'd just have gas for one.
Does exactly what the manufacturer says it will.
has a nice range of sounds, and will sit in the cocked mode without shifting, despite a heavy drummer.
On the down side, it's freaking expensive, very heavy and takes up a lot of real estate.
I had a Morley Distortion wah, which wasn't bad, but could never get it tightened enough to stay cocked and work smoothly
I would love to check out Jacques Trinity wah. It looks intriguing.
http://www.pedalgeek.com/cgi-bin/new_sh ... =link--tw2Over on Talkbass, JGR did a wah shoot out.
http://www.talkbass.com/forum/showthrea ... earthquakeIt's bass orientated so may not be all that usefull to you.
MM