Fedor-CroCop
Fedor-Nog
Pettis-Bendo 1
Edgar-Maynard ll/lll
Silva-Stann
Bermudez-Grice
KZ-Porier
JDS-Hunt
Imo
many of those aren't title fights.
Forrest/Rampage, Rampage/Hendo, Shogun/Lyoto I.
I'm biased though, Gus/Jones is up there with these for me though.