What OS??

I've read a lot of articles regarding Google Chrome and one thing that gets mentioned all the time is the fact that Chrome is Google's attempt at driving people away from their desktop, more particularly Windows, thanks to the way it is built. With each tab being a process, it is like running a bunch of small programs and the web app integration would mean that these can be actual applications you use on a daily basis. People have gone as far to say that the OS they use doesn't matter to them since they always use the same programs that are available cross platform + their favorite browsers and it is a very valid point.

Nowadays most people use their computers to do check email, surf the net, chat, and use Microsoft Office. Obviously this is something that can be done from any computer, yet most people prefer to use Windows. Part of that is due to the fact that they are used to it or perception of other OS' (Mac's are for graphics, Linux for Computer Science nerds, etc) but it's obvious that Windows is slowly starting to lose grounds. Once people (*cough Tiff*) get passed what others say and actually try another OS, like the Mac OS, they realize that they can still do the same things they used to do and possibly on a friendlier OS. Even a hardcore PC guy can make the switch to another OS and realize what they've been missing. It's nice to see people finally accepting Macs. I was brought up on Macs and have always used them until I went to college, where I was required to get a PC, and have been using them ever since. I've been itching to go back to Macs for a few years now but it just doesn't make sense since I only use my work computer anyways.

I look at the way I work and all the programs that I use on my PC are available on a Mac so the switch would be an easy one. The only thing holding me back is the fact that I already have a work computer that I use at home, so don't see the point of getting another computer. For anyone that's interested, the list of programs would go something like this:
Digsby --> Adium
uTorrent --> Transmission
Launchy --> Quicksilver
Chrome --> Firefox
Picasa --> iPhoto

Those would really be the only ones that change. MS Office would remain the same, Photoshop too, Dropbox as well, etc. I guess the only program I would really miss would be Samurize but that's can be easily taken care of with widgets.

So really the question becomes, which OS do you feel is "coolest" or best for you? I'd be curious to see how many people would pick a Mac over a PC if you could guarantee they could do the exact same things with no issue whatsoever.