I did Just lol at that statement about macs being more prone to viruses . . . not going to get into that though, being its a false statement ;-)

It's truly unfair to try and compare these three, each one will fit a need and that need will be met by how you use it. Netbooks are a good fit for people who use a minimal amount of computing power and are on a strict budget. They can be upgraded ram and HD wise, but their Atom Processor is just the worst . . . and worst . . . and yeah . . .

Sony makes their laptops to last, kind of, the more you spend the better it will be. Plain and simple. We purchased a Sony back in the day, which was 2002 maybe? Paid 1700 for it and that computer, though running windows ME, is still running to this day without flaw. Then, in 2008 replaced it with a "new" sony on special for an amazing price of 399 (Black Friday), and it turned into the biggest hunk o junk crashing numerous times within the first 2 years, and not reviving by 2010. That computer was replaced by a Macbook Pro 13.3", base line model. Everything changed, and life was good again.

The sony will suite most needs for people who are content with the Windows based OS. They do pack a lot of their own editing software on the computer, but some of it is OK to work with while others are just taking up space. The performance on the higher end Sonys does stand up to time and value, but when you drop bellow the 800 mark for their laptops, you might as well buy a netbook and count your losses a year later.

Apple is designed for Photogs, editors, sound engineers, and graphic designers. It has mass appeal, and though Mac wasn't a common house hold object in say, 2005 even, today it's become a bench mark for many things such as: Smart Phones, Laptops, MP3 Players, and Tablets. There's a reason that most tech sites will compare the latest and greatest phones hiting the market to something like the iPhone 4, or when the Kindle Fire came out, how it was instantly criticized for not being an iPad.

Again, it's not a comparison you can just make. Obviously a macbook pro will be the best of the 3 in most cases, a higher level sony compared to the lowest level mac may out preform it however, but then it comes down to OS loyalty and whether or not you want to deal with the Windows Blue Screen of Death vs the Gray Screen of Death from Mac.

For those in the market for a netbook, macbook air is a GREAT option, because its not a limiting device. There is a real processor in there, and the Solid State Drive will keep it begooing as quick as you can think and act.

Not a technical review or comparison, just more of the same food for thought. I'm sure there will be some Windows fan boys on here who critisize the mac, but really, dual boot a mac with windows, and the macbook will still outpreform most portable computers.

Cheers