I am comparing the 52327 with the 52725.
I really prefer the low-glare screen on the 52327 (yes I know its not protected), and can live without Digital tuner or the HDMI.
The only other difference I see is that the 52327 uses the AMVP filter and the 52525 uses the AMVP2.
Anyone have any idea of the differnces between these two filters?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic