I'm in exactly the same position, it didn't even occur to me that the layout might be different. What's the difference between the US and UK layouts?
Perhaps minor, but as I say, noticeable when I switch keyboards that its an annoyance.
Edit: added some text
Eh? They're both shifted, so why does it matter which one is on which key?
> the " and @ keys are switched. I use strings way more than I do anything else, so the US way is preferable here as its on the home row
Less travel required.
But the main pro for UK users is that the UK layout has a double-height Return key. It's fab.