I was on the same quest not too long ago. I am on a fixed income so I had a very strict budget and had to make sure I didn't spend too much. At the same time, I didn't want to get something junky either. I was determined to get everything I wanted at a price I could afford.
Here's the thing, no one can tell you which ones are the best Plasma TVs because each brand works better in different situations. I mean, what I like for my weekend movies may not be crisp enough for a huge sports fan who wants to see the sweat on the faces of the players. Maybe your teenage son wants one for local Halo 3 tournaments on his Xbox 360.
In order to determine which Plasma TV will work best for you there are a few simple things you can do. First, get out a piece of paper. Write down the things you absolutely cannot live without. Maybe you need high definition. Maybe you want one with a iron clad warranty. Once you have that in order, you can start looking at the different models to see which ones fit your needs.
After that write down all the models that have the features you want. Once you have that done, you can search a little deeper and start striking models off the list until you have the perfect one for you. Remember, just because you are on a budget, that doesn't mean you need to settle for less than what you want.
If your home is full of small children you may want to get one that can hang on your wall with a wall mount. That way you can keep your precious TV out of their reach.
Remember, you cannot always trust the manufacturer's website. Of course they are going to tout their own as the best thing next to sliced bread.
I recommend you check out unbiased third party sources. Then you can know for sure which are the best Plasma TVs for your situation. Now you can finally have that Plasma television you've always dreamed of.