I tend to concentrate on the panel capabilities. Smart functionality is nice for the family but, deep down, I always suspect that their lifespan will be far shorter than the display itself. We can hope for companies to support their smart platforms but, at this stage, I assume that won't happen. Stuff like AV1 hardware decoding is the latest and greatest for how many years? Waiting for that risks having something better on the horizon.
For me, with current OLED panels, it's mainly about motion capabilities, especially for 24fps material, due to my viewing habits.
Seriously. AVS is a place where you go to learn to be unhappy. - Bear5k
Video Pioneer PDP-LX6090 (calibrated)
Audio Yamaha RX-A3010, Dynaudio Audience 72 (FL, FR), Dynaudio Audience 42C (C), Dynaudio 42W (SR, SL), Chario Piccolo Star Satellite (Presence Height), SVS PB-1000 (SW)
Sources HTPC, Xbox One S, Squeezebox