The worst one ever has to be WWF Smackdown 2 for PS1. That game not only took ages to load, but it did before every scene and match too in career mode. So to skip to your match, which was most likely the 8th match out of 8, you had to skip ALL THE WAY from match 1, past every scene and get to your match. It was hell, so I just used cheats to get all the extras. I never played career mode because of that.