Dolby Vision or HDR10+?

[Cromulent]

I'm confused about HDR on TVs. I've been looking at TVs to replace my old 1080p TV and found one for £300 that supported Dolby Vision and Dolby Atmos and was 4k.

If I were looking in the £300 range, what would be the best TV to get that would be good for an Xbox Series X and an Apple TV 4k? Does a TV with a 120Hz refresh rate significantly increase the price?

 

[Cromulent]

I'd guess on a 300 quid tv, don't bother with hdr of any guise.

Thank you. I'll have a look and see if I can up my budget.