Buy whatever card you need for your use case. Both are fine.

For me, as a gamer, I think dlss is good shit, and nothing really beats it Rn. Also I like using rtx in single player games, I only expect 60-90fps from games anyway.

I'm a game developer, I benefit by using a nvidia card because i have greater access to current standard apis and graphics features, hardware acceleration for light baking, the option to use tensor cores for learning how to write shit for it, and it generally has better compatibility with dev tools.

Nvidia cards also tend to keep their value more, at least down under.