Suvudu has a great cagematch tournament going on. The tournament pits various sci-fi and fantasy characters (reps from major fictional universes).
Some of the best (possible) battles:
Dumbledore vs. Ender Wiggin
Aragorn vs. Arthur Dent
Rand Al’Thor vs. Conan the Barbarian
and my personal favorite:
Hermione Granger vs. Cthulhu
How great is that!?!
My prediction:
Final four: Arthur Dent, Roland, Aslan, and Cthulhu.
The Elder God drowns the simpering Christian allegory in a sea of endless dread.
And there it ends.
Arthur Dent and Roland Deschain battle endlessly. Arthur Dent is functionally immortal and Roland’s narrative is cyclical.
Wowbagger, the Infinitely Prolonged and Cthulhu bond over beers while watching the fight.
pkstephens 
In the words and voice of the immortal Homer J. Simpson: “NEEEERRRDDD”!