I honestly loved all of the characters because they're all kawaii and I can't decide one atm. Anyways, I actually like Madoka more since I see the cover of the anime in MyAnimeList and various pics in tumblr. I can't stand her kawaii and she's also an interesting character in the series.
Don't kill me through but when I watch the anime for the first time, I used to hate Homura but after Movie 3, then I became in love with her. I don't know why tbh. :^)