Some good mods. Vanilla is still the most fun though.

Very biased. Both are fantastic. Obviously RDR2 is one of the best games ever made but Cyberpunk is fun. Especially if you have a strong enough rig to run higher settings with Ray Tracing. Mod support is through the roof with Cyberpunk. I honestly enjoyed both a lot. RDR2 then straight onto RDR1 will absolutely blow you away.

edit: Its been years people. Get over your hate for Cyberpunk.