Druids are pretty lit if there's animals to charm, which is a surprising number of places. So I'd say them.
A lot of the non-ench solo vids involve strings, which I don't think should count and aside from Mela (bard), I haven't seen a lot of decent solo vids without them. Someone post them.
As for the melee classes, I actually think Paladin is up there because they can heal forever, esp. with Soulfire. I know Opmeter has done some cool stuff without spamming generic clickies (ahem, like certain SKs and monks).
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