It's been awhile, but yes I think root/rot is usually optimal at that level. You don't have a pet yet, nor do you have a decent slow, so fighting next to the mob just means taking lots of damage in exchange for minimal added DPS. And while you can kite with SoW, you lose so much damage that simply rooting is much more efficient.
There might be some mobs that don't hit very hard (for your level), and against them you might want to go toe-to-toe, but otherwise I'd stick to root/rotting until at least 29. At 29 you get your only charm, so you can charm fight for a few levels (charm an animal, make it fight another mob, cast invis on yourself just before one dies then finish them both off with nukes). Then once you get to 34 you get your first real pet and your slow is around 40%, so that's the point when meleeing starts to make more sense (although against the hard-hitters you'll still want to root/rot).
|