In your opinion, has anyone had a worse year than Kane? I don't think any of it is on him, but he found a great niche with Bryan and has been put in garbage spots since the breakup of Hell No. Now he drains the life right out of everything.
Goldust and Marc Mero in 98-99 would be my picks. Especially Goldust, who went from a major contender to comic relief, and then nails-on-chalkboard irritating. Mero lost his valet and spiraled into nothing due to injuries and just ended up being a channel-changing break.