Need help with 5 account composition.

I have decided to box 5 accounts and I am looking for help with deciding what 5 classes to box, how to set them up, and what I should be looking for when matching abilities.

My interest is in pvp. I am not interested in trying to get arena rating or rbg rating , just want to do some battlegrounds.

I have been watching Aellitv channel for some time now and the setup he uses (3xDKS frost, 1x Enhancement Shaman and a Resto Druid ) looks to be fun for battlegrounds and very versatile.

I am using Isboxer and Jamba.

I think DKs are always a safe bet. Ellay does well with his druid healer and if you want to run 5 then that could be a good idea. Some like to run 4 in BGs and take a pocket healer with them. Not as independent as running 5, but still fun and you can meet some cool peeps.

I personally would go 5 DK as well. Lots of fun. Blood Elves. As for team synergy I can't remember all the ways other classes can integrate well