Which Lifeproof case should I buy for IPhone 6??

I've had my gold IPhone 6 for 6 months, love it, except I cracked the screen and needed to get it replaced. I drop my phone frequently so I want a very protective case. I am looking into the Lifeproof Fre and the Nuud. Which one would you recommend. The main thing I'm looking for is drop and screen protection for everyday life but I like that they are both waterproof as well. The Fre is slimmer but I like how I can use my regular phone screen for the nuud. Any reviews on sound quality and overall quality? Price is really no issue just looking for the best case so I don't have to replace my screen again!