[tkuane]

I don't think it matters as long as you get good fit and contact between the neck and the joint.

I could be wrong, but I think if you're gluing the neck with hot hide glue, a dovetail joint won't hold unless you've got really good fit and contact, so it's a guarantee of a good neck joint in a way. You can always make an ill-fitting neck hold with a bolt.

On higher quality acoustics where the neck joints are equally good in both cases, I think the differences are much less important and not worth worrying about. After all, you can change bridge pins and what not to tweak your favourite guitar . . . but it's not like you can change your neck joint . . . or can you?

I like to pay my attention to soundboard design, guitar shape, bridge placement, woods, etc