Air elementals are once again stupid and unfun. Try Fleshmaker's end room with just a few melee types. Even after dropping the swarm of air elementals' constitutions to zero to negate 95% of the knockdowns, the constant no resist check/no ability check/no skill check toss they perform makes activating the runes incredibly difficult.
My crazy suggestion would be to change them to something more along the lines of this:
http://www.d20srd.org/srd/monsters/e...m#airElemental