Any company that produced a piece of software as atrocious as iTunes is not going to convince me to give up on PCs. Have an iPad and really hate the walled garden approach. Also, programmes crash all the time on iOS and OS X, it's just that Apple users never seem to want to admit it. Perhaps it's because they spend so much money buying into the ecosystem that they are embarrassed to admit it's far from perfect.
I'm honestly not in denial. I work on a Mac and PC at work all day. Neither one really crashes more than the other. Actually, the only things that crash on my Mac are the Microsoft programs.
Also, let's just clear something up here. An Apple computer does not have the walled garden thing like an iPhone. You can download and install any software from any source. OSX does have an App Store, but you don't have to use it. I agree, iTunes does suck. You are not required to use it though. You can buy music from any source you want (google play, Amazon, pirating if that's your thing) and use any music player or manager you want. Heck, they even make an OS X version of Winamp!