So according to projector central's shootout between the epson and panny the Epson has darker/better blacks and therefore better contrast when the image projected has substantial black components. However, "In scenes with more typical average light levels, the AE4000 renders them in higher contrast, with deeper color saturation and a bit more three- dimensionality" Which means according to projector central the Panasonic has better darker/better blacks more of the time and thus better contrast.....
Proj Cent's shootout also states in their Picture Quality section, "When viewed in a dark room, the AE4000 also has an incremental contrast advantage in most scenes that makes us prefer its image most of the time" .
And apparently you can get a second year warranty on the Panny by mailing in a rebate form once you receive the projector, which then equals the Epsons 2 year warranty... excluding the lamp usage portion.
So assuming someone, me, is going to purchase a new projector for a dedicated home theater room where ambient light control is not an issue it sounds like the Panasonic is the better buy as it has a cheaper price tag, "better" picture and equivalent warranty.... would you all agree?
note: I currently have an Epson so I am leaning toward Epson from the get go