I love how hilariously bad some the voice acting is in GTO, minus Onizuka who's randomly perfect.
It makes the show more endearing.
You're watching the dub because it's bad? Well I can't argue with that logic but I hope it doesn't ruin some of the better parts. Also Steve Blum is probably my favourite English VA, not enough to watch a dub but when I've heard his stuff he's always been excellent.