Even though I don't own one, I would have to say the Apple Aluminium one. This was before I started my mechanical keyboard collection. I like my MacBook built-in keyboard so much that I was very excited when Apple announced the new keyboard. I was thinking about connecting a keyboard, a mouse and a monitor to my MacBook for more comfort. But when I tried it, it felt way different from the MacBook buit-in keyboard. It was one of the worst keyboard I've ever used. That being said, there are some people who like them for their form factor, fair enough.