Both phones are on LTE Band 13 (700c). They're both displaying about the same signal strength.They reneged in throttling LTE on October 1, but Verizon has been throttling 3G data for unlimited users who exceed certain amounts of data for a few years now. If the two phone described by distortedloop were using EVDO and not LTE, the throttling would be expected If it's LTE, then maybe it's something to do with the radio (which would be surprising, because the common belief is that Motorola radio and antenna hardware and firmware is among the best in smartphones today.)
Here's a screen shot showing the Motorola with unlimited data is on LTE.
The Unlimited Moto pulled about 2-3Mb/s. The Tiered LG was pulling about 15.