Unfortunately, people let Romney's different religious views cloud their judgement (not all people, just the ones that refuse to learn about the other issues.) Personally, I would rather vote for a person that stuck by their religious beliefs (whether catholic, mormon, athiest, etc.) than someone who denounces their faith or the church they have been a member of for years because it would weaken their campaign. Romney knows his political views are unpopular but he has never turned his back on his beliefs to gain points in a poll (same can't be said for Mr. Obama)
I have also heard people say they don't like Romney because he has no personality. We aren't voting for prom king here. We want our president to be competent and have the ability to turn our country around. If you think that is Obama, then by all means vote for Obama, but not because he has a more personality...
[rant concluded]
That is unfortunately why Mr. Obama is the president now. He was elected purely on emotion and hype.