The ESP Guitar Company

Hi, I'm thinking of getting a wah pedal, but not sure which. I play an EX400 and Horizon with FR, mainly metal, european for example, power metal, heavy metal, bits of melodic death and folk metal. Also I have a great interest in Progressive rock/metal. What kind of wah would suit this style? I know the crybaby comes in various models, each one offering more customization via pots but still i'm not sure if i would even use them... So your advice would be very useful :) Then out to try some! David