Hard question to answer because everyone has preference.
I.e. if you're not picky about quality, then some would say bigger is better because the experience is different. Others might want better quality panel/HDR-10/etc and in that case you want the better/smaller TV. Also budget is another thing to consider. If you have a hard/set budget then you limit your options but if you can expand your budget, there is always something else to consider (and actually makes a choice a lot tougher due to more options).
Personally i recommend making priority of features based on what you use your TV for. Example do you watch a lot of 4k movie or want HDR-10? If so might want to consider a higher end panel. Do you watch a lot of low quality source (say cable)? If so maybe you want bigger size (won't really take advantage of the better TV). Are you going to be close to your TV? In which case a smaller/better panel might be better.
Of course don't take too long or the TV you want might be sold out...