One problem that a lot of people have with the series is that Madoka doesn't really seem all that protagonisty, and her inability to make a decision about what to wish for no doubt contributes to this. The non-spoiler response is that there is a reason for this, which I personally found to be highly satisfying (your personal milage, of course may vary). The heavilly spoiler version is: Juvyr fur qbrf trg n punapr gb fgrc hc va n fvtavsvpnag jnl yngr va gur frevrf, gur ernfba Znqbxn srryf fb ha-cebgntbavfgl rneyl ba vf orpnhfr sbe gur ohyx bs gur frevrf, fur vfa'g gur cebgntbavfg: Ubzhen vf.