How on earth can you improve the technical spec of a screen by adjusting its sw settings? We are talking about hardware here. There's a limit to the magic you can do by 'playing' with the sw settings.
Software manages everything. Color, contrast, etc. Calibrating the screen makes a huge difference.
Don't knock something until you've tried it.
I should hope you don't have all of the TVs and monitors in your house using the factory default settings. If so you're missing out on potentially great image quality.
If your Viao has a dedicated GPU, you might be able to calibrate the screen on your system too. I know ATI and nVidia have screen calibration wizards in their drivers, but I don't think Intel does in Windows.
All screens require calibration. No two screens will look the same and thats what calibration is for. Its also good for the owner to calibrate it to their liking.
As a comparison, in theory, you can do the same sw tricks to any other notebook (Vaio TX, MBA, MBP etc) so the gap between the two screens will be the same. If can recalibrate the MP, then you can recalibrate the MBP too. The MBP&MPA's screens are simply superior. Period. Have you heard about the word LED?
Why do people seem to think that LED is this magic technology that makes screens look better? LED is just a different backlight. It doesn't effect the LCD's pixels in any way. If you have a crap LCD panel a LED backlight isn't going to work some kind of voodoo that somehow makes it go from crap to great. Apple's own product info on LED screens when they were first introduced was that users would not notice any difference in image quality and they were only being used for their better lifespan, energy use, and instant on capabilities. LED backlights have absolutely no affect on overall image quality. One could argue brightness, but I could easily show you LCDs that blow away those with LED backlights in terms of brightness.
The MacBook screen is just fine. Like ALL LCD (and any display in general) it requires calibration.
How can you fix the viewing angle? by fixing the sw? If you are not in front of it you will notice the glare of the black, it's a tech thing, it depends on the technology used. As well as other factors. That's what we are talking about...
The viewing angle on the MacBook is no worse than any modern notebook in the same price range as it is.
And yes I'm defending the MacBook while typing this on an HP with better overall hardware that I like better than my MacBook. The MacBook has a great screen and its a great computer, just overpriced because of the lack of a dedicated GPU.