Barrier vs Heal
If you want more self-protection, you take barrier. If you want more group protection, you take heal. Well, that's how it should work, but it doesn't. The reality is that you should always take heal, never take barrier, all because of one important detail. The movement speed boost. This can be used as a sort of mini flash to escape danger or catch up to a target. It is this movement speed boost that makes heal too good and barrier hardly ever used.
Either buff barrier or get rid of the move speed on heal to get them both more in line with each other in terms of power.
