IMO, a Windows laptop or Chromebook is doing a good MacBook impression if it has above-average performance, battery life, and build quality. (Again, those are the main hallmarks of a modern Apple laptop.) I'll add some extra qualifiers depending on the exact Mac model:MacBook Air alternatives should be super lightweight and portableMacBook Neo alternatives should cost well under $1,000MacBook Pro alternatives should have a crisp, rich 120Hz disp…