ramparts is hard due to the aggro drop of some of the mobs.

Cant remember the names of em but there are some that will punt yer tank for 10 or so yards and go after the next person on the list.

With a pali if yer get punted twice in a row someone gets beat into the ground.

with a pali its easier to keep aggro on 4+ critters but caster chew palis up pretty bad.

with a feral druid yeh end up with more hitpoints and its easier to heal but keeping aggro on 4+ critters is harder then a pali.

probably be a good idea speccing one resto and have another off heal until yeh get geared up or out level the instance by a level or 2.

You can do it with all moonkins but it'll be harder then with a dedicated tank/healer