Ruby and Sapphire, 100% because of nostalgia as I haven’t played either in 20+ years - those were the last games my grandpa gifted me so they hold tremendous sentimental value.
Gold and Silver would be close seconds, since my sister and I played those games when growing up and I have great memories from back then.

I think web hosting shouldn’t be an issue either way, but once you’re scaling up and trying to use more of their stack, the seams start to crack.

Realistically, I don’t think there’s any good competitor, or not at a scale which would make sense. Finding local/regional cloud providers is usually not an issue.
At larger scale, it feels like we’re stuck between a rock and a hard place, with US cloud providers on the one hand and CN ones on the other, and barely any serious competitor outside of that - OVH would be an option, if reliability, tech support, performance and features are not a priority…
That’s my personal takeaway anyway, from professional experience with OVH over the past 5 years.

If you’re happy with OVH as it is, then I don’t think it can get much worse.
I really wish OVH would get it together and be a serious competitor to other (US) cloud providers…