I have no wand or scroll enhancements, so I just use Heal Scrolls.
Meh to each their own, I don't rock alot of SP because of Spell Pen and Focus feats, so if I can get away with using cheaper spells,--for me every little bit adds up. I also have the luck of not really having to Pug very many members of a raid, and being in a Guild with a ton of high AC Evasion builds, and having Casters there to heal my WF Barbs. Last Shroud I single clerics, most of my SP went to DPS the Pit Fiend because people simply werent taking damage.
Now, I could use Mass Heal for Undead mobs for sure
Really, I have to see how the spell is implemented in game b4 I make any decisions on it. Maybe I will drop Empower H altogether ans just use Mass Heal.
ETA : Since I run offensive casters the other thing that affects me is that I have Heighten on all the time unless I know for sure that I will not be doing any CC or DPS. I don't want to have to toggle this on and off, as I will surely forget/ be too distracted doing that. This is part of why I use Scrolls to heal as much as I can instead of the actual spell.