The Epson 5020 ub has the brightest 3D of any affordable projectors, according to most accounts. Soon, we may see dlp fans here slamming the Epson with claims that dlp projectors have appreciably less crosstalk. But by most expert accounts, crosstalk is not a valid issue with the 5020ub. If you want bright, vivid 3D on the big screen, 5020. I wish I had one.
I have a 3D DLP projector and an Epson 6010. The Epson isn't perfect when it comes to 3D crosstalk, but it is extremely good and it is very bright in 3D on my 120" HP screen. It looks to be as bright in 3D in high lamp mode as it is in 2D in normal lamp mode. It produces an amazing 3D image.