I have content on 3D Blu Ray in both systems.
I find the Imax material (Under the Sea, for example) to be excellent.
We have a Panasonic 3D TV, so cross talk is minimized due to the protocol Pana uses to trigger the glasses.
However, we also have movies in RealD 3D. Same as above. Cross talk seems to depend on the talents of the producers making the movie and their proper use of parallax adjustments, or so it seems.
In my own testing with my 3D camcorders, I can actually take a scene, play with the Parallax manual control and actually increase or decrease cross talk. I found that to be interesting and was able to take some really nice shots (both video and stills) with no cross talk after adjusting the parallax manually.
The big thing I’ve noticed is the widescreen format that different movies are presented in can have an effect on the overal 3D effect and cross talk.
Imax, at least all the ones I have, are in true 16:9 (approx. 1.77:1 or thereabouts). This fills the screen, which gives you the most encompassing 3D effect. Also, slightly different aspect of say, 1.85:1 is not bad.
HOWEVER, I will no longer buy a 3D movie that’s in 2.39:1 or "thinner" as this, while great in a large-screened movie theatre, for me, loses some of the 3D-ness! LOL The cut off on top and bottom, not filling the screen actually reduces, somewhat, the overall 3D effect. If I’m going to have 3D, I want full-screen 3D, not ¾ of the screen. Plus, our Pana is Plasma and I don't want to burn the screen by having "bright" in the center and "dark" on top and bottom.
We also have Avatar in 3D, which fills the screen and I can say, it looks as good as in the movie theatre. I've not noticed any major cross talk (maybe once in a rare while). Very well produced 3D. P.S.
I've looked and played around with every brand of 3D TV out there (except Philips) and I have noticed that all seem to suffer cross talk, Panasonic being the least affected. Again, I believe it's due to how they trigger the glasses.
All others, as far as my info goes, all do the triggering like this:
While Panasonic does this
that momentary position with both lenses being darkened helps to minimize cross talk due to allowing the screen a moment in time to disolve the previous picture (whether R or L).