Otterbox armor vs lifeproof?

I just bought the otterbox armor and its cool and all but the case is so fricken HUGE! I like slimmer cases for my iphone 5. I was thinking of lifeproof fre but I read reviews and heard about the screen sensitivity and how when people try to talk to you it sounds like your in a tunnel. I just wanted to know is it worth it to buy the lifeproof fre or keep the armor

I have the fre and I havnt had any trouble with it. When I had the lifeproof for my 4s, the speaker acted up but it's fine for the 5 in my experience. The screen feels a little different but you'll get used to it in a few hours and forget what it's like to not have it