2014 13" Retina Macbook Pro on a Rain mStand alongside my Thunderbolt display. On the desk I also have a mechanical keyboard with cherry blue switches, Logitech G502 mouse and Apple desktop trackpad.

Not machine related, but very important to my setup, I have a Herman Miller Mira chair and Ikea motorised sit/stand desk, although I don't stand nearly as often as I should!

I think generally as long as you have a suitably powerful computer for your job, the peripherals and desk environment are most important.