Chuck vs. Fedor - 99% of people would probably say Fedor would own Chuck like adult vs baby! However, recent times have shown just how unpredictable MMA is. Even then he'd probably still win! Main point is, I'd really wanna see if Chuck could stand up to the big guy. However, more of a fantasy than reality would be to see Fedor come down to 205. That would be an awesome battle! Fedor would still win though!
Fedor vs Randy Couture - Had Fedor not lost his only match in his career at the RINGS - King of Kings event against Tsuyoshi Kohsaka, this match would have happened a long time ago.
Royce Gracie vs. ??? - I'd just hate to see Royce Gracie leave MMA with that loss against Matt Hughes, he is a huge personality in the sport and has had some amazing matches! Anyone who can keep going for 90 minutes is just amazing!