Christian stereotypes are not very flattering. Like most stereotypes, they are fixed and oversimplified - I wouldn't want to be like 'them' either, (although I might actually fit some of the stereotypes!) The view of Christians as 'hypocrites' also seems to reflect a belief that Christians should live up to the morals that all people inherently understand. I seldom hear other religions held to this standard, Christianity seems to be the one people believe should result in moral behaviour. I agree, although I think the comparisons to make are how an individual was before, compared to how they have changed - and they themselves are the only people qualified to judge this. (Some begin their journey further down the moral ladder than others!)* But be assured, becoming a Christian won't make you change into someone you would dislike.
* Therefore, get rid of all moral filth and the evil that is so prevalent and humbly accept the word planted in you, which can save you. (James 1:21 NIV)