I completely disagree. I'm a Verizon user, my working partner is on T-mobile, and I regularly benchmark out of curiosity. It's not even close, in any neighborhood.
Lol, that report was written by a T-Mobile employee: https://www.reddit.com/user/milan03 . All it stated was Verizon has been active on densifying their network and is purchasing 4x4 equipment. Verizon does own the most spectrum in NYC, but they have not been leading on LTE-Advanced feature rollout.
T-Mobile already had that equipment deployed for over a year in some markets. They also are the only ones running 256QAM DL 64QAM across their entire LTE footprint (though you'd need a phone supporting it) increasing the spectral efficiency 15-20%.
With the carrier aggregation now turned on I can get as much as 100 DL / 5 UL. They own the most LTE spectrum.
Verizon does have the best network NYC.