I have a team with only warlocks and one with only mages, both 70+ now. However it is SO very annoying I can't be able to use the dungeon finder. I usually end up camping outside one dungeon, effective perhaps but not so fun playing the same dungeon over and over...

So now I'm thinking. Should I rearrange my groups, add a tank+healer and only use 3 dps? Or should I hold out and level them in battlegrounds instead?

My gaming style is playing battlegrounds, dungeons and old raids. Will I have more fun at 85 doing these things with e.g. 5 mages than a traditional group?
(I also have a traditional group with hunters at 85).