PRO: Does not shut down with an overclocked 100W GPU, dual fan cooling design (both can shut down at idle too), optimus, weight, size, keyboard quality, better casing finish, more ports (display and USB).
CON: SPEAKERS AND SOUND CHIP (MSI is so much better), more locked down bios, pickier about what GFX cards it takes (though cards can be easier to find in certain circumstances), no built in bluetooth.