I chose Dell because the 13" screen fit my needs more than the 14", and they have have committed to supporting Linux while Lenovo has been sluggish to release necessary drivers (there was some backlash here and on Reddit 1-2 months ago about this). My Dell has a mild coil-whine problem, and the keyboard is probably less desirable than the Lenovo's-- you can go to a Microsoft store and try out the Dell's keyboard if you have one nearby.