I suppose I'd rather the US wins AI as opposed to, say, China
If you're an US citizen, I would understand why. If you're from elsewhere, looking at how both countries deal with foreign policies, perhaps the answer requires some serious reflection.
The real winner in this subthread: negative polarization. It's kind of incredible to watch. Show people two actors, point out the bad things one has done, and they instantly apply "enemy of my enemy is my friend" logic and turn into China boosters. Without even considering that there might be, say, other options.
China provides some great manufactured goods (I may well buy a Chinese car) and runs an ordered society with clean streets and good public transport. But because it doesn't have a free press, you and I (and most Chinese citizens) can't see what the downsides are. They're politely but firmly swept under the rug. And if you get on the wrong side of the "ordered society", it can go very badly for you.
Perhaps the real lesson is how the American right have so successfully poisoned the idea of competitive politics and free speech that a literal one party state looks better than .. whatever the hell is going on over there. People would opt to give up their right to politics simply in order to not be subjected to politics.
(remember how Mao recruited the first few Communists effectively one village at a time? The tradeoff was paying taxes to them rather than the Emperor, and if any imperial tax collectors wandered in to ask the rebels would deal with them. A common model for effective revolutions. But it absolutely hinges on being able to deliver better material conditions.)
Realistically I am starting to think China would be more responsible with it than the US.