Unless you go with a Sony 929, Sharp Elite, or a new LG LM9600 then you might as well not even bother with an LED if you're looking for good uniformity.
You also have be aware of blooming with local dimming LEDs. It's an artifact that's preferable to flashlighting but it's annoying nonetheless. FWIW I barely see any flashlighting on the sharp elite.
ht Panasonic TC-P60ZT60, Monitor Audio: Silver RX6, RX Centre, Radius 90HD; Martinlogan Dynamo 700, Marantz SR5006, PS3, Oppo BDP-103D
2ch Marantz PM8004, Sony BDP-S1000ES, JVC T-X3 tuner, Monitor Audio Silver RX1, REL T3, Apple TV, Peachtree Audio DAC•iT
lr Panasonic 50ST60, Sony BDP-S5100