They are pretty much all sh!t. And a lot of them won't be available where you are (no matter where you are).
With that said Netia are supposed to be fairly reasonable (or at least reasonable in comparison to TP), if they were available where I am, I'd use them.
Well, I was chosing this summer (as my previous contract expired) and the only offers available here in my town were TP and Netia, the prices are the same, so I decided to stay with TP (not really wanted it). 1MB (~120 KB/s) on 2-years loyalty contract = 62 PLN/month (with VAT), 1-year contracts are too expensive, so I'm stuck for another 2 years with a company I don't like (and which offen cuts my download speed from 1024 kB to 512 kB, previously I had 512 kB and the speed was OK, I didn't experience the problem with it being reduced)
Thank you very much for help but i think i will make new contract with TP or Orange freedom,this wich i found the best for now,but i still wait on promotion maybe from Netia...