Eep, Cilan's got 2x less votes than Brock. This is unacceptable! D:
But yeah, I definitely prefer Cilan. Brock was a nice character because he was like the mature figure that was there to guide Ash, but that really wasn't enough. His hitting on girls gag got very old for me and nothing really happened with his character through his ten+ year run. I really wish he got expanded and developed more outside his departure episode; the writers had more than enough time to do so.