Well, archers are pretty much godly on any race, so it's not surprising that they do well as Mist Elves. Certainly, not having to engage things in melee and being able to dual-wield shields basically full time is a pretty nice perk.
Healing/Candle is not really worth it for Mist Elves, IMHO. Herbalism/Gardening/Raven is much more useful to them. HP regeneration is not a huge deal when you have such a small amount of HP and one or two blessed spenseweeds is all you need to get to full HP. My first Mist Elf win was a Farmer back in pre7. I think I finished the game with a Healing skill of like 65 and no Candle. It was just never worthwhile to bother increasing it (and it's really difficult to increase anyway).
Hoping to win with every class, doomed. Archer, Barbarian, Bard, Beastfighter, Druid, Elementalist, Farmer, Fighter, Monk, and ULE Priest down.