Gamecube version is better IMO. Plus it was how it was intended and does not have some of the potentially game ending glitches the Wii version has.
I thought the Wiimote aiming was better, and appreciate 16:9, but otherwise the GC version was better. Combat is definitely a lot better with a button than with waggle. I'd go for GC if you can get a copy for a good price.
The fatal bug in Twilight Princess was fixed. If you buy a Nintendo Selects copy, you won't have any worries. I also believe it wasn't present in the GCN release which was released later.
Skyward Sword also has a game ending bug that can be triggered due to the order you choose to do things.
Thanks for the info.... so I’ll just have to look for the Nintendo Selects copy then.