I am about to purchase a plasma TV, I can't decide between pioneer 728P or panasonic 1080P 50" both cost $2000 - panasonic blue -ray 50 gb bd-re blank discs

I was told that the pioneers regrets canceled the superior technology, the need for better resolution, but the hope had been years in coming, I must, if movies on Blue Ray? I also prefer some of connectivity options and its pioneers. Any advice would be appreciated.