I don't really understand this thread, it just seems to be a list of stuff.
Plenty of these things work the same (or in a similar) way on a Windows based machine.
For me, pros are the touchpad, as I still haven't found one that's as accurate and easy to use as the Apple device.
Battery life is also a strong point.
Its pretty much a gathering of various subtle advantages that are not substantial enough to be considered as a significant advantage on its own to mention in a debate or something but if you add all the nuances together they add up to be a significant element in the decision making process to the consumer.
I don't want to include anything that is controversial or debatable, it should be a collection of mostly reasonably irrefutable facts.
So far:
--------------------MAJOR REASONS TO OWN A MBP OVER OTHER TYPICAL LAPTOPS -----------------
(things they usually don't have, at least not in one package)
-OSX will not slow down over time and become sluggish after filling the hard drive with programs.
-Trackpad size, touch sensitivity, and navigation.
-Battery efficiency/length.
-Unibody design.
-Logic Pro an OSX exclusive, is the best music production software available.
-iCloud everything.
----------------------------MINOR SUBTLE REASONS TO OWN A MBP --------------------------------
(things that are too small to bring up or something someone could install as a third party Win7 program)
-I can just close the lid and open it it, and it will be like instant on or off no delay.
-Fastest boot times.
-I can highlight a word and just use the built in thesaurus.
-I can hold down shift command (nerds) 4 and make a screenshot and it saves it to my desktop ready for uploading anywhere.
-Built in text to voice reader with the tap of a button. Highlight text and read. Especially combined with Reader.
-Mag safe

-Runs quitter than the average laptop.
-Perfect plug and play reaction time and behavior (might be same on current Win)
-No pre-installed bloatware like is common (or alternately no need to fresh re-install upon purchase)
-Systemwide spell check
-Easy to use system preferences, no save as button.
-Less steps to do basic things
-Faster/better system update processes.
-Faster force quit
So pretty much when people say, OK you just payed a premium for a Mac, my 600$ laptop does the same things and has better specs, you can't say... Oh yeah well force quit is faster on a mac... and it has a built in thesaurus.
Then they will say... so that is worth 1000$ to you? --And I can find a Thesaurus online. So these little subtle reasons are not reason enough (the trackpad and battery is though) but the idea is that if we add them all up, they become another "battery" level advantage from the consumer perspective.
So I am just trying to gather all those little subtle advantages in one place....
In list form they become more meaningful as they add up to a superior ownership experience.