This is the reason I went with the Epson. I like bright 3D and as the lamp ages I believe most here are going to have problems with 3D after 250 to 500 hours or so. That means replacing your lamp very early or substantially cutting your screen size to accommodate 3D and an aging lamp. I also have some very good sbs material and it looks fantastic on the 6020. Outside of the fact that the 6020 was significantly less expensive than the Sony and JVCs and had two pairs of glasses, extra lamp, a mount and a three year replacement warranty included in the price I can't think of a good reason why I bought it.
I was concerned about convergence issues, but I was able to make some adjustments so that it looks pretty much as good as my DLP and better than my other three 3 panel projectors, which have pretty good convergence. The 6020 is not perfect, but for the money this thing rocks!