I started with an Archer, because Loremaster dps at low levels isn't all that good. But after I hit max level and was traited red, the archer wasn't all that great anymore. I do a ton of AoE damage and the archer picking off single targets just isn't as useful. I switched to the herbalist and haven't looked back. It gets especially good when you buy the Ultimate heal. I wish I could get all those marks I spent on the archer back.
The other good thing about the herbalist is there is absolutely no prejudice against bringing one to a group. If you bring anything else, there's always someone that complains about it, whether the complaint is justified or not. No one ever gripes about an herbalist.
Gilcrist, 85 Man Warden, Elendilmir
Gilfindond, 85 Elf Champion, Elendilmir