Numpad makes notebooks unnecessarily wide (I don't like widescreen, 4:3 was the best aspect ratio), but classical Thinkpad arrows and home key block layout is what I really miss (and Trackpoint with proper drivers and cursor kinematics as it were in linux circa 2005)

https://upload.wikimedia.org/wikipedia/commons/d/d5/IBM_Thin...

(though I prefer ISO enter, eg. Hungarian, German or Swedish layout)