What is the best Network for Lumia 535 DS in the USA?

[Neugen]

Here are the Lumia DS (Dual Sim) Specs from Expansys:

Network: SIM 1 - 3G: 900/2100 MHz / GSM: 850/900/1800/1900 MHz / SIM 2 - GSM: 850/900/1800/1900 MHz

Based on the above, What is the best Network for Lumia 535 DS in the USA?
What data speeds can be achieved?

 

[RumoredNow]

2G EDGE... US Carriers need 850/1900 or 850/1700 depending on carrier and area to get 3G.

There is suddenly way too many threads on 535 US carrier compatibility today... Odd.

 

[Guytronic]

[Moved to the 535 section]
​