Worst episode ever? (Spoilers? Not really...)
It's been a while since I've actually caught the show, and of course, everyone seems to have their criticisms of GX (I'm talking to all the 19-year-olds in college right now...).
But I think the worst premise for an episode of Yu-Gi-Oh, and frankly the worst premise for an episode of ANYTHING, was when that maniac who left the Academy kept sneaking in and digging through the bin of rotten sandwiches and somehow kept GUESSING which one was the DELICIOUS EGGWICH and STEALING THE EFFIN EFFWICH...EGGWICH, because he had become one with the cards and was supposed to have some power of foresight. And he turned out to be some bad Tarzan wannabe who could "guess his cards good" (even though he was no good at math, keeping a field presence, or even adding up the many Life Points he was losing). His actual cards weren't even anything to call home about.
It might just be me, but it's a sign of a pretty bad plot when Jaden is running around screaming, "We've got to catch that EGGWICH THIEF!!!" (Even worse than the kid in Yu-Gi-Oh with the VR world. There's 22 episodes we'll never get back.)