Which Healer and DPS for easy MOP-Heroic runs

[Kraxx]

Hello, i want to start a new pve-team. I'll create a standard 1 tank, 3 dps and 1 healer team. Can someone tell me which healer is currently the best for boxing? And which dps-class should I take? Someone told me that survival hunters are very easy to box and that they do a lot of single and aoe damage. Thanks a lot! (btw: why i can't insert a line break?)