This is outside of the box a bit, but you could play scholar!

High level scholar play has us using alot of those same DoT rotations in between healing bursts. In 4 man dungeons I spend alot of my time in Cleric Stance to help DPS down mobs and use rouse and other abilities to keep the party healed.

You might actually enjoy Scholar more than Summoner, and you get to keep aero and protect.