This is a strange question. Is this about trying to impress someone? I notice you have conspicuously omitted Oxbridge here, which one could argue are the two most prestigious universities in the world.
The average person anywhere, whether in Arkansas or Andorra has perhaps only heard of a very few universities. Maybe Oxford, maybe Harvard?
Yes, there are some excellent UK universities and people in other places have heard of them. But why does it matter? If you want to attend Bristol, go for it. If you want to go to Purdue, same. Is UCL better than the Ohio State? Probably? But who cares?
People who need to know, know that a degree from ICL is a good degree. If your goal is to leave the US and work abroad, I would argue that your ICL degree is likely to be viewed more positively than your degree from U Conn, for example. I suspect that your degree from Karolinska Institute will be more highly regarded than your degree from Wash U STL. But again, I’m not sure why this is important.