Pascal's Wager because it makes sense if you already subscribe to Christianity ("I'm soooo glad I made the right choice") and "You just don't want to believe" because they have an incredibly hard time trying to figure out why not everyone is happy to swallow the "good news" Kool Aid like they are. Either way, they get their daily dose of smug.
Christian apologetics is the art of rolling a dog turd in sugar and selling it as a donut.