If your room is so poor you need a BD screen, then going for the better projectors like the JVC or Sony models doesn't seem to make much sense. If you have a good dedicated theater, then the BD screen makes no sense at all and really wasn't a good purchase.
For a good projector in a proper theater, the JVC X30/RS45 (identical) model is excellent and is comparable to the Sony models.
The Optoma is completely different as an entry level DLP model, but gets good reviews. It's black levels won't touch the JVC or Sony models which means it's inappropriate for good theater use.
The Panasonic is designed as a business class projector, so I would opt out of that in favor of the AE8000 which is a very good home theater projector, but not as good as the Sony or JVC in my opinion.
The HW15 is outdated and should not be on your list as is the JVC HD250.