I love the gamecube controller, and I've been using it since Melee, but I think I'm really ready to move on to something else, mainly because of the damn shoulder buttons. Z is a mess, too mushy, small, and overall unreliable for me. L & R I really want analog instead of digital, to avoid having to travel halfway down before the press is registered.
I don't know if switch pro is gonna cut it, because that octagonal gate is so good. I'm sure I can eventually adjust without it, but it really helps over a circle-gate for me.
What does that leave me with? There's the PDP controller, but from reviews I can find, it looks like it's kinda bulky and the sticks aren't really as good quality as the original GC.
Hori battlepad is the last option that looks REALLY good, but I've yet to find anyone who's actually used it and tested out how well it works.