Well the Qualcomm SnapDragon chips literally compete on operations-per-watt. But it depends on what you need -- raw horsepower with a mostly tethered laptop or on-the-go freedom.

I found that I’m missing the netbook era. I need some 11inch laptop when I’m on the go for email, writing, and coding. For more focused task, I’m not giving up my 2 monitors setup and my mechanical keyboard so the computer form factor matters less.