If you don't mind about the risks of burn-in, then go OLED. It's superior in every way.
QLED is nice, but it's not as nice. The brightness of small elements in otherwise black regions of the screen get crushed to all hell due to the array dimming. Inversely, there is a glow around elements when they're big enough. These are distracting when the visuals change on a per-section basis, causing brightness changes across the screen. The motion is still not perfect and leaves a tiny little bit of ghosting behind. It can be alleviated with Black Frame Insertion, but I'm not sure the flicker and drop in brightness is even worth it.
Only go for QLED if, like me, you dread having to worry about your TV getting some burn in and having to babysit it to mitigate it, like limiting or intentionally varying your usage, running pixel refreshes, etc. With QLED I have total peace of mind and don't even care if the TV is on with static images for long periods.