Quote Originally Posted by 'Xorn',index.php?page=Thread&postID=190482#post190 482
He can spamheal you to death but he'll struggle with a lot of AE damage I guess.
With my pally I have Beacon of Light in my macro and Sacred Shield to help control situations like this. There is also the glyph of Holy Light that provides a group heal (although small). I like my pally as a spam healer but I have found it harder to make her efficient. My druid, on the other hand, I've sometimes thought must have a hung up macro because her mana bar doesn't go down lol.

Aside from this, I will second the suggestion that 3 casters for dps works really well. I've found my warlock a bit more difficult to balance (just haven't taken the time to get the rotation right and the felguard seems to have a mind of it's own) but mage, shaman, and boomkin are easy casters to work with. In my experience, paladins are the least fiddly in their tank rotation and I find their taunt the easiest to work with. Macroing my death knight just hasn't been so easy. Between runes, runic power, and hit rating, it's easy to get macros hung up and it seems like my oh shit buttons are never available because I just used that rune for something else. But I admit I just haven't put a lot of effort into it because I don't usually need to tank when we raid.

Anyway, I think the only thing that really makes a mixed group harder is the time it takes to get it right. Whereas with a 4 shammy group you only need to figure out your rotation and macros and gear once, with a mixed group you need to do that for everyone. And as you can see from my comments above, I'm still slacking in that department :P But once you work our your rotations I think mixed groups work great for PVE. As you pointed out, there are a lot of great things various classes can bring to your group.