OLED isn't the only option for savvy TV buyers. Samsung's competing QLED televisions outperform for brightness, while the introduction of Mini LED backlights has only improved peak light output and overall contrast – the areas that OLED generally has the upper hand with, thanks to its per-pixel brightness control.
It's a tighter race than ever, then, though it's worth assessing secondary characteristics for OLED and QLED screens. An OLED with a cheap processor may cause more artefacts and video noise, while a QLED with edge-lighting won't get the true benefit of its enhanced color and contrast. Format or feature support can be crucial if you're hooking up your TV to a PC, a games console, or a 4K Blu-ray player too.