Epson Home Cinema 3020 3D Brightness
Outstanding! While there might be one or two lower cost gaming projectors out there that can match the 3020's brightness for 3D, nothing else in the price range and quality can without spending an extra grand. Epson's own HC5020UB is essentially the same in terms of 3D brightness, and the Panasonic PT-AE8000 and the Sony VPL-HW50ES aren't a whole lot less bright. Still, all of those are at least $1000 more.
That makes the HC3020 - for the bucks - the King of 3D viewing in rooms without great lighting control. Mind you, there are other bright projectors in 2D, that are similarly suitable for family rooms, etc. Consider the BenQ W7000 an old favorite of ours, in its second full year. Pricing has dropped to below $2000, so in the ballpark The BenQ is plenty bright in 2D, but still not a match in terms of 3D brightness.
I've resurrected these comparison images from the HC3010 review. Basically the one lens of the glasses is placed between the camera and the screen, to show relative brightness. The first image below is with the glasses setting (in the projector's menus) set to high, the second image at medium, and the third at low. As you can see, there's a rather significant difference. With the low setting, crosstalk is essentially gone except for source related. Most will still prefer the compromise of Medium.