Majoru Oakheart
Adventurer
It depends on the group. The people I know liked to abuse a bunch of stuff. Like the totem that when you put it down would heal everyone if anyone within a radius of the totem spent a healing surge. Or the Cleric Daily that healed everyone every round they spent in it. We had one person who was convinced Shaman was broken because he'd abuse magic items and feats that added to healing in order to allow one person to spend a healing surge and then heal someone ELSE for around 40 or 50 points. Whenever anyone would get low on surges, we'd break out the ritual that allowed you to transfer surges from one PC to another. Plus the other cure utility spells that didn't take surges from clerics.I agree that it was often spread out (usually by good tactics from the PCs, or baaaaaaaaaaaad play from the DM), but "non-surge healing"? Wat? Non-surge healing was very rare and very weak in 4E in my experience, to the point where it was basically irrelevant.
Using those methods, we would use the surges of the people who rarely got hit(like the Wizard) and give the healing to the Defender.