As I see it the cheapest one or the top one with 1920x1200 are the only alternatives, the cheapest one are much cheaper and more portable, but if you need the extra resolution, don't care about size and don't wanna worry about the stupid decision to only include 128MB vram go with the 17".
Me myself would like to see the screens irl, and also know if it uses turbocache, but I will probably opt for the low-end 15.4" and then get a 20" TFT to put on my desk.
One benefit except probably better panel quality is that I will try to not sit "at" the notebook because I often eat at my computer, drink at my computer, and so on, and I rather mess up and spill on my usb keyboard than the computer ;/
Also I doubt the notebooks screen are very comfortable if you use external keyboard and mouse.
But well, for me it will probably mostly be "portable desktop", I guess that means I should go with 17" but whatever =P.
I would prefer if it was even smaller, then it would be even easier to decice on a huge screen at home ;D
(My friend plays wow on his Sony DW2000 or whatever it's called, 40" 1080p, and I think he likes it a lot, so that's one alternative for people with bad eyes ;D)