I always considered Revan to be something like Neo in the second and third Matrix movies; powerful enough to beat most opponents, but still almost loses anyway due to the circumstances of the situation, which are out of his control.
"There is something going on in time and space, and beyond time and space, which, whether we like it or not, spells duty." -Winston Churchill
"For of all sad words of tongue or pen, The saddest are these: 'It might have been!'" -John Whittier
"Apathy is death." -Kreia