I always slot in this order:

Protect, Aero, Cleric Stance, Swiftcast, Blizzard II/Stoneskin

In situations before level 30, You can protect as soon as you go into the dungeon, remove Protect and Add Cleric Stance. Cleric Stance will go into a 5 second timer and you will have all of your skills back up. No need to add protect back until the dungeon is over.

Thats how I've always done it anyways.