IPhone 4s case: lifeproof or speck?

I just got an iPhone 4s for Christmas, and I need to decide between a Lifeproof or Speck case. I'm really afraid of my screen cracking. I've heard Speck cases can break and Lifeproof ones are less functional. Which one should I go with?

If you are worried about the screen, then get a screen protector installed from the phone cases stand at your local mall. Honestly, I find any cheap jelly or hard rubber case will work. Speck makes cheap cases and sells them for an arm and a leg. Lifeproof cases are for people who are either accident-prone or who do things like read in the bathtub, snowboard or scuba dive often. Not worth the 80 bucks for regular use. Phone cases are an accessory and are meant to be fun. As long as you protect the screen with a screen protector (I got both sides of my 4s done) then you are good to go and can put whatever case you want on it.