They are paled in comparison to these other guys:
The Initiate from Battlespire. S/He kill every daedra he met, stop the invasion, and freaken beat Dagon in his OWN realm, all singlehandy.
Cyrus would be second. He is the HoonDing (think lightsaber jedi), stall Vivec when he was full god mode, and kill a dragon that previously burn all the redguard armada with one flaming blow.
The next one in line would be the Eternal Champion of Arena. 10 freaken years of dungeon running throughout Tamriel require a crap load of will power to beat Jagar Tharn.
Lastly, the Agent of Daggerfall. Who need force if one can play politic with every power hungry lords, two Liches, and be the one to chose the destiny of the land, only to trigger Megatron and a Dragonbreak that screw EVERYTHING up in the Iliac Bay.