It could get close in terms of healing w/in a single encounter, using only encounter resources and surges. There were feats to enhance Inspiring Word. At paragon, Fight On, at Epic, Supreme Inspiration. They essentially 'stacked.' And, yes, your allies could blow 8 surges in one fight if you blew threw it all. The pacifist cleric, though excelled at non-surge healing and at boosting the added healing on a surge it triggered, of course, so the daily healing potential was much greater. It could also end up a little spread-out. The Bard had some amazing late-game healing, too, but, again, nothing to hold a candle to the pacifist.I seem to recall warlord builds that could get pretty close if not overtake to he daily healing ability of a cleric. Required more healing surges though.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.