I tested both glasses with Little Mermaid 3D Bluray, MIB III 3D Bluray, GrandCanyon on 3D Netflix, and Resident Evil 3D Comcast.
I did not experience crosstalk at any point with any glasses. This obviously means I should try to push them harder, but both glasses passed that test for me. I even paused the screen for the Disney castle which can be a source of crosstalk for many. Admittedly, I did not have a test image, just in-movie testing.
At first I thought the Estar were a little brighter than the Mitsu, , but after some considerable testing I determined it was likely due to some slight color shifting (discussed below). My final verdict is that the glasses have very similar brightness reduction.
The Mitsu glasses tend to have a slight blue tint, whereas the Estar glasses tend to have a slight yellow tint compared to the image when no glasses are worn. Watching the image with no glasses obviously provides the brightest, most color accurate image, but that's not very fun.
Due to the yellow tint of the Estar glasses the image can appear slightly brighter compared to the Mitsu glasses. The animation colors appears more vivid too. Skin tones seemed the most natural on the Estar glasses also. On the other hand, the color of the sky and water looked more realistic and accurate in the Grand Canyon film. My verdict is that both glasses provide a slight tint. The mitsu glasses look better for blue and green colors and the Estar look better for yellows and reds . . . a simple matter of color filtering really. I would call it a tie, or a very slight edge to the Estar if only because the color shift provides some perceived brightness to the 3D image.
With the performance of the two essentially being a tie, the Estar glasses are the clear winner since they are lighter, more comfortable, contain larger lenses, are rechargeable and use RF rather than IR reducing interference with remotes.
If you have any questions or want me to test the cross talk further, let me know.