Wink [Q] Samsung Galaxy Mega I527m or m819n for T-mobile LTE

I am currently wondering which phone works best for T-mobile's LTE. The Rogers version of the mega has the 1700/2100 band in some websites specs but some say only 1900 so im not sure if that will get tmobile's hspa+ or lte. On the other hand the metropcs version i believe uses the same bands as tmobile now so idk. Which one will work best with t-mobile or are they both equally the same and will both work on tmobile's lte?