I have not seen the Panasonic in person but I do know that I have not been nearly as impressed with the LCD projectors I've seen compared to DLP. LCD always seems to have a blue cast to it, especially in dark areas.
I don't know which LCD's you have seen. I have owned a few different ones and never had that problem. Up until the last year DLP's have held the reign on black levels but LCD has come a long ways in this regard. They are
extremely close nowadays. So let's see here.
Black levels - slight edge to DLP
RBE possibility - big downside to DLP (for those effected, you never know which friend is going to come over and be bothered by it).
SDE possibility - slight downside to LCD (have to be sitting extremely close to notice and this isn't a factor with the SS on the Panny's).
Mounting Flexibility - LCD by a mile
Color uniformity - slight edge to DLP
Brightness - mild edge to LCD (depends on PJ but the LCD's have been cranking more lumens as of late).
Contrast - mild edge to DLP
Bulbs run about 300 dollars and are good for around 2000 hours. I know people who have run them much longer and been satisfied, but this is when I switch mine out. You can buy a filter to place over the bulb when new and as it ages remove the filter so the light output is equal. If you are not using it as a daily TV viewing machine you will be surprised at how little hours you really rack up.
JMTC