I guess it depends on how you're playing. With my DD I do a lot more damage with my normal weapons than with any summoned weapon and I don't get the synergies from using my auras.
I only use the GS for PVE to mix things things up and not get bored, because it sure is a fun gimmick. But if I want to play WvW I don't really like it that much. You could use it, though, to give a colleague that has no great aoe possibilities the sword so he can also use the small meteor shower to destroy siege equipment on the battlements. But other than that and for fun, I don't think it's a better choice than the elemental.