Having not seen the supertank method, I guess I'm still shocked people use this way of defeating DM.
Sans manaburn, its still the easiest strategy you can come up with. You'll only have three people max anywhere near the main circle, so inopportune wiping positions really aren't an issue. Supertank also revolves around killing AATT last, just as you suggested, considering you can't exactly drag him to the teleporter.
I mostly prefer the supertank method because you're only relying on two people(Tank, and dedicated healer), rather than as many as eight people in charge of kiting and keeping said kiters alive.
