Who puts a Power button above Backspace and "="/"+" and next to Delete? Obviously, someone who doesn't use that keyboard.
What happens if you press this TrackPoint by mistake while you type? Is it possible to move the cursor to a different location or potentially delete something you have written as you continue to type if a paragraph is selected when you touch the TrackPoint?
I thought newer laptops didn't have this button anymore...
I think almost all laptops fit your needs now (well, most of them). The rest is a matter of taste. The keyboard will have to touch and feel. There is no other way.
Good luck in your future purchase!