The no brainer approach: shifter. Limited skills, generally not super dependent on gear (other than hp or saves). Defense shifters can usually solo through the mid ranks and are a huge group asset for getting to hero. Felar for hp/rp. Gnome outlander (strengthen) for straight hp.
More skills, more tactics: shaman. Good built in dam redux. Giant if you can stomach the gains for more redux. I recently did the math and a empire fire giant pain shaman should be taking 16% damage vs physical of opposing alignments. Gives you cool rp opportunities as there are some fun religions out there or just say screw it and go unempowered for a slightly weaker yet still good class.