#2
i am not sure about the the line 6 but the boss is really good. (I have one) and i am sure the crybaby is good. i just have the 535Q model.
#3
for a wah, get a Buddah wah if you want cleans or an RMC wah for distorted wahs.
for a distortion pedal, get an ibanez or maxon tube screamer (I prefer the 8 series). Push your tubes for tone.

I really dislike the Dunlop wahs. Theyre very treble heavy (outch my ears) and most are not true bypass. I had a GCB95 which had the worst bypass ever. Sucked your tone away.
Gear
Gibson Les Paul std faded, Godin LG
Marshall jcm900
Keeley ds1, maxon od808, boston tu500, RMC Wizard