Chrono Cross. I won't say the whole series, because Trigger honestly doesn't need defending (except from heathens, but no one cares about them), but Chrono Cross got kind of a bad rap due to all of the hype that was generated from "ZOMG CHRONO TRIGGER SEQUEL!!" Fans of the first game walked into it expecting the Holy Grail of RPGs, so when the game turned-out to be completely different from Trigger, they revolted against it. It's still a good game though, and it has a really good story.
I will defend that game with my dying breath if I have to.