I just yesterday unpacked and configured my Sony SZ 140. The first experience between the two couldn't be more extreme. Start with the packaging, the Sony comes rapped in a plastic filament tied to a cardboard sheet. The first paper you see when you open the box is "How to return your Sony". I won't dwell on this first boot experience too long, much has been said about it elsewhere, suffice it to say that Apple wins this comparison 10 to 1.
Can someone please tell Sony to stop shipping all of the junk software with their very nicely designed and equipped laptop? They put so much junk in it that it makes the machine almost useless out of the box. My first instinct with every Sony I buy is to format it clean and start from scratch.
There is only one area where the Sony came out ahead. After booting and setting up my wireless network I proceeded to run a software update to pick up all of the patches and security fixes. Sony w/ Windows XP Pro had to download 42MB of patches, my MacBook Pro w/ OS/X is downloading 250.2 MB of updates - nearly 6x as much as my Windows machine.
Apple could have done a better job pre-loading the latest patches onto their MacBook Pro. As it stands, I will spend the next hour or so downloading updates before I can use my new Mac.
The new machine is slightly smaller than my PowerBook, but also slightly wider (by insignificant amounts), the one bummer is that the power supply is much bigger than the PowerBook and about twice as heavy. The battery is also twice as big, but comparable to my Sony Core Duo laptop. From all of the reviews I have read, battery performance is ~2h, no better than the PowerBook, too bad.
You can always tell Apple laptop users from their Windows counterpart because Apple users are within 6' to a power outlet. Can't wait for a true lightweight, sub 3 lbs, 7.5h battery life Apple notebook like Sony's TX series.