I've got an Ibanez WH-10 and a Vox 847A both really nice wah's I'm going to get the Jerry Cantrell signature Wah soon probably just because I'm a total Wah pedal lover 😆
I don't actually use them a lot but I just think there fantastic sounding things. When selecting a wah imo the most important factor to consider is the sweep and what you want the wah to do.
If you want a very broad sweeping wah I really recommend the new WH10s there like 100 bucks but if they sound anything like the original they have a really nice sweeping range a lot of low end and its just very round sounding to me. When I use my WH10 I always rock it from heel to toe.
The Vox 847A is your classic wah i really like it but the sweep isnt as broad or fat as the WH10 i rock this wah toe to heel cause its got more of the brighter side imo.
The best thing is to go to your local music shop take an hour or 2 and try out as many as possible because no matter what some people say almost every wah sounds totally different.