I remember when the GCs first came out - they were literal game changers and I loved them. Won some money at my first couple of Conferences throwing them. Back then there was just Advanced (Wooten, Rawls, Malone, Cheyenne, a bunch of those other FLA pros threw), Competitive (where I threw and at the time against now pros like Sarah Cassidy, Tyler Cobb, and a few more), and Social.
Fast forward to today, I HATE GCs. WAY too floppy for me once they're broken in. I like a firmer bag and I throw a pretty low and hard bag, so I'm mostly a carpet guy. I throw BG Sorcerers more than anything, but also mix in some Wizards, Noble Livids, and a few other carpets here and there. I had a lot of success with Surefires when they first came out too, so they'll always have a special place in my game and will get broken out every once in a while.