I think it varies by what you're doing, and also software implementation.  PS3 pointer games definitely feel laggier than their Wii counterparts (Time Crisis vs HotD, RE5 vs RE4), and this was roughly explained to me as being due to how Move/Eye processes it's pointer data vs Wiimote/IR.

Just to reiterate the OP innocence, the lag issue came up in this thread:

http://gamrconnect.vgchartz.com/thread.php?id=119158&page=1&str=362870798#

A few of us were discussing the lag issue with Kinect and other input methods (mainly controller). This info is actually quite nice to have.

actually i found the lag to not be noticeable on either HOTD or time crisis and i've played on both, wiiremote is not faster

I think that Kinect also suffers more lag from the software aswell, since there are way more points that have to be tracked. In all hounesty combined with the lack of any buttons, i find it hard to believe we will ever see any ''core'' games for Kinect, although the targeted casual audience won't be bothered by the lag to much.

Where did you get the 50ms of Wii remote lag from? I've seen the articles on the PSMove, and I understand where the Kinect numbers can come from, but I don't see how the Wii Remote is so much slower than the PSMove. They should be about even, not a factor of 2 away.

Well, I'm going mainly off 2nd hand reports and comments from friends, I haven't played both but have been told it's noticeable.   A close friend who's a gun game freak told me it's really apparent in TCRS, especially after TC4 with the Gun.con3.

Kinect latency is not part of the gameplay, it's a hardware limitation. Kinect lag is not even a problem of completing a gesture, it's a problem of filtering noise and involuntary movements, so it cannot be improved by much. On the other hand if you want a fast KZ2 you can do it because you're not limited by the hardware, but, mind you, you can't have KZ2 on kinect, because you'll add the software lag to the hardware one.

no he is wrong it's the other way around the guncon is inferior to the move, the lag is TCRS is not noticeable

Two sources, one from a Wii Remote programming guide: "To avoid the random state put a delay of at least 50ms between every single byte transmission." http://wiibrew.org/wiki/Wiimote and a quote by Rich Hilleman, Creative Director for Electronic Arts who during the Hot Chips symposium in August 2009 commented on the "100ms delay inherent in the Wii remote", which I assume referred to software and hardware. I suppose you could get even more precise numbers if you took the IR scan frequency into consideration (I didn't bother to find that out).

EDIT: Found my third source again: http://www.pitt.edu/~nak54/Wiimote-poster-a4.pdf This is about building a low cost motion capturing system with a Wii Remote, and it says about the hardware: "Latency in acquisition: 50ms"

For the games that will be released for Kinect this lag shouldn't be a problem.

As usually I find these threads amusing, switch the situation around where PS3 was slowest and the x360 most responsive and all the so called experts would be fabricating totally contrary "facts" to support their system.