Adding another melee

I am currently working on leveling two new DKs using RAF to join up with my 85 DK and 85 resto shammy. I have several other chracters already at 85 that I could add to the team, but prior to doing so I wanted to see if I could get a little feedback from those that already run a mixed melee team.

Here are the characters I have availalbe not currently part of the team:

85 warrior
80 rogue
85 pally


My 85 resto shammy is full S10 and my 85 DK is decenly geared for PvE DPS and ok tank set, he also has over 3k resil in his pvp set. I really want to do some melee pvp with the healer driving the team but also want the ability to Q for random instances and eventually run heroics on my own.

Thanks.