Regarding the ideal resolution:
I have a Vaio Z with a FullHD screen, it's not as bright as the 1600x900 screen but otherwise clearly superior. It's the "Retina-effect", images, letters, symbols - everything appears sharper, more refined. The size is sometimes an issue because most applications are not designed for these dpi-values, but that will change when these resolutions become more popular.
The Z itself is a mess, it's fast, has a superior screen and is lightweight - but only two components consist of high-quality materials (carbon cover and aluminum-frame), the rest is plastic and starts to fall apart after a few months (the hinges rip off!), the fan broke and is noisy, the battery lasts less than four hours, speaker broke...
My last Unibody-Macbook broke down after one year and Apple neglected service but admitted it was their fault - just not oficially... arrogant a....
But what can you do? Lousy chinese slave-labour work but with tighter QC and clever design and innovative approaches and at least supports some high-wage R&D-jobs - I will have to buy a matte 13" ...
Alternative with superior quality and support? Toughbook F9, twice as expensive, twice as thick, half as fast... I don't know... I want IBM back!