Is one easier than the other or is everything the exact same regarding glitches?

Regarding glitches, GCN has Japanese weirdshots so you don't have to worry about weirdshot crashing.

GCN is also the slowest version of the game. Pause buffering is easier compared to 64, but it has a bunch of lag where the other versions don't. In South Clock Town on the first day, I swear it runs at sub 10 fps. It also crashes way too much for its own good, at least from my experience.

It's not even the GameCube's hardware that's at fault, it's the terrible emulator on the Zelda Collector's edition disk.