The US enter key is vastly better for people who type. It is less of a stretch when you are staying at the home position.
Honking great L-shaped enter keys are better for sales assistants who want to mash the button down to confirm an action.
I really don't understand why some people prefer the L-shaped enter keys.
I switch between US/UK keyboards. All the confusion happens when I go back to the UK boards. Aiming for left shift, I hit the \ key. Aiming for Enter, I hit the # key. When I go back to the US style it's easy, because those errors are simply not there to make.
I use the Colemak layout, which makes things easier. But if I wanted to stay with UK Qwerty on a US board, I would map an unwanted key to replace the missing \, or design a keyboard layout to get around the missing key problem.