iPhoto - Love this application, makes it sooooo easy to view, edit, tag and organise my photo's and it has a simply awesome plugin for facebook so you can tag everyone in pictures in iPhoto it will then upload them all to facebook for you including any people tagged and any comments you put on the photos
iTunes - i know it available for PC and there are alot of haters for it, but i love it, automatic album art, easy to navigate and view/search my music as well as the obvious iPod integration.
AddressBook - this one at first may sound strange but...my MacBook has built in bluetooth, i can wirelessly hookup my mobile phone and sync all my contacts to and from my pc to my mobile phone, makes it much easier to manager and organise my contacts when i can do it on my Mac then sync to my mobile.
iCal - Similar reasons to AddressBook above, i can sync my Calender to both my iPod and Mobile phone with virtually no effort, any changes i make either on my mobile, ipod or MacBook all get sync'd back and changed on all devices.
Most of all is the integration between applications, i can virtually drop and drag everything i see, so if i like a photo just drop and drag it, even between applications etc.
CURRENTLY there is no/very few spyware/virus' out for MacOSX so i don't have to worry about scanning my pc weekly just to keep it clean.
No loss of speed, if you run xp for a few months or more its significantly slower than when you first installed it, not the case so far with MacOSX.
Finally, it just looks damn sexy, yes im sucker for look and my MacBook delivers both on both hardware and software.
Please note this is not one of those 'im so smug im using a mac which are trendy' posts, but merely pointing out the reasons why as a long time Windows and Linux user im glad ive made the switch to Mac and why i can't see myself going back any time soon.


