Thats a bit harsh dude. Sure, you're in a good position because you've now had extended experience with all 3 in a
professional environment, but I don't think I need 12 months solely on a Windows box to know how average it is in every way.
I'm by no means a zealot - there are things on every program/OS I wish were all condensed into one 'Super App/OS' - but OSX is such a joy to use and so intuitive and rock solid, I don't see why anyone would use Windows unless they're a tight-arse or absolutely have to use some obscure Windows specific software, in which case you'd probably be better off having a dedicated Linux box anyway.
Actually, after spending 6 months or so on a brand new 20" iMac when I was working for Monash, I'd go so far as to say just get an iMac and be done with it - 2500 bucks will get you a 17" tft, 2 gig of RAM and a 180G HD. 3200 will get you the 20" with 2 gig ram and a 250G HD.
All the computer you will ever need.
(Well, until Moores Law bites you in the arse.)
pshaw, royale is a developer with years of experience on all platforms, so although his opinions are forthright, they hold water. There's nothing 'bespoke' about Apple either, they're a ****ing corporation turning over millions of dollars. If that's your idea of 'bespoke', there's this cool bike company called Cervelo you should check out.