Which do you prefer, saving Imoen with help from Bodhi or with help from the Shadow Thieves. This is the first time I've spoken to Bodhi in the graveyard when she offers you help to get Imoen, but I felt it was an evil way to do things (as did the rest of my party members). Which do you find more challenging/fun? Should a character of good alignment stick with the Shadow Thieves instead of Bodhi?

Siding with Bodhi is considered to be the "evil" path, even though if you cast Detect Evil most of the shadow thieves light up like Christmas lights. I mean you are helping what is obviously (from the encounters that you have at night) a vampire enclave. There are some "nicer" choices you can make on the quest, but in the long run it is the more evil path. That's why the good and even neutral people in the party tell you not to trust her.

With that being said, you can side with either side and you don't really have a penalty for doing so. But from a roleplaying standpoint, it is probably better to join the Shadow Thieves if good.