I don't wish them to make new types each time, I just want to see more diversity in swapping the gym types around. I understand that rock is the easiest but I wouldn't mind seeing a tough rock gym near the end, a strong one for a change instead of.
-walks in, uses one pokemon to slaughter the trainers and the gym leader, leaves.-
A friend let me borrow his LG because someone stole my FR :S, so I chose bulbasaur out of pure randomness and caught a mankey before going into viridian forest, walked through destroying everyone when my caterpie evolved to Butterfree and got confusion which let me 1hko most the bugs there. my mankey and my bulbasaur could have dropped the gym by themselves, and then at the second one I tore through them again.
in diamond and pear no gym gave me any difficulty like in r/b/y/g/s/c/fr/lg/
I understand its a pain to think up the new gyms/map/pokemon but it would be nice to get more anime styled gyms, because its always the same, I think the players would gain more entertainment through a gym where its not "walk in, use this, win, leave" :s