willy: I came within a knat's hair of buying a Samsung 6168. I just couldn't pull the trigger with the DLP technology and Samsungs QC issues. When I saw a Sony SXRD next to the 6168, the Sony won hands down.
I looked and considered, and looked and considered some more for over 6 months.
Go to a store and look at both, side by side, on the same feed. Look a long time at both. Go home, read some of the boards. Then, go back and take a longer look at both of them side by side.
When you look at the shading, contrast, edge effects and black levels, the SXRD will win, hands down!!!!!