Rust or DayZ? Which is better?

Hi. I've been struggling for what to get. Rust or DayZ standalone, i had Arma 2 and Arma 2 combined operation and also dayz mod but it never really worked so i never played Dayz. Rust seems cool and one of my best friends have it so maybe we could play together. Well say your opinion and cons and pros. Both games look really interesting but i never played other survival games than minecraft. Usually i play Team Fortress 2 or Counter Strike: Global Offensive.

I would have to go with DayZ.

Rust and the only reason not to get dayz is that dayz standalone still runs like the arma mod and it looks like arma too rust is a much better game because it is individual.