i've got an old morley wah and i don't much like it. every year or so i plug it in just to check, and then put it away again! it does suit clean guitar better, but it's a very cold, clinical sound. of course, all these years and still no scratching pots!
my old crybaby now scratches like a small flea infested dog! i've got one of those hot potz that i must get around to installing... but it's a much better sounding wah than the morley, even wih the scratching.
the reason i haven't gotten around to installing the hot pot? i got a zakk wylde wah! i've heard a lot of people say they're too brutal or exreme or somesuch, they mustn't have actually listened to it. i find it a great, sweet sounding wah. definitely the best i've ever used with a distorted sound, it can give a hugely aggressive sound, but clean up and you can get beatiful, vocal like sounds.
have to say, the wah sounds in the pod xt aren't bad. they don't have the grit or balls of the dunlop, but they have more personality than my morley.