If she's a druid, enchanter is the way to go. Two huge utility classes with almost zero overlap. By the late teens the enc can swap from pets to charm and then at 29 you can exp anywhere with ports. While cler/enc will wreck the top end, an ENC's best friend pre-55 is a druid.
Outdoor dungeons are best (for harmony), but you can duo anywhere.
Also, your answer:
http://wiki.project1999.com/Loraen%2...ide#Comparison