Agreed. In your equipment list the Panny Blu Ray is the best option. However it is not the best Netflix performer if I recall correctly. For the highest quality Netflix feed you need either the WD TV Live media streamer on a roku XS. there are a few other streamers out there that support Netflix's high quality stream, you need to check the list at the Netflix site.
I think your TV has a 96hz mode for showing 24fps movies at their native frame rate. If this is the case, it might be worth using a 24p capable netflix player.
Some people are obsessed with native frame rate and other people couldn't care less. If you're looking for the best possible experience, native frame rate is the way to go. However it requires a bit of research to find a streaming player with the right mix of features and 24p support.
I'm not certain but I don't think that the Panasonic DMP-BDT100 (a product released in 2010) has an Adaptive Bit-rate Streaming Netflix player. It would therefore not have access to 1080p Netflix video encodes, 5.1 sound or closed-captions.
My recommendation is to spend a little money to get a newer Netflix streaming device, either a new BD player or an STB like the Roku 2 XS or 2 XD (the LT and HD are limited to 720p). The Panasonic BDT-220 has full-featured Netflix and will output VOD sources like Netflix at 24p, something very, very few streamers can do.