I did the same, but the other way around. I was a windows user for 15+ years. Android for all my tablets and phones.
I decided to try Apple. Got a decked out MacBook Pro (latest gen), iPad Air, and iPhone 5s. I can't say it's better, just different. Apple is definitely NOT perfect and locks up/restarts just as much as any non Apple device. I laugh when I see the Mac vs PC debate and the usual ammo of "it just works" and it "never locks up" arguments come in. Not true.
Not true for everyone or to differing extents, sure. However, to flat-out say it's not true, period, isn't true.

I've had my MBP spaz out and lock up exactly one time in the entire time I've had it.
Compared to Windows, yes, OS X "just works." How many times have I encountered problems with Windows drivers failing to install or somehow becoming corrupt? Literally countless times. How many times have I had to deal with Windows backup not working? Again, countless times. Not only that, it's sooooo slow. It literally takes around 12 hours for the Windows PCs to do even an incremental backup over wifi. TimeMachine is easy, reliable and efficient.
I've had to track down which USB driver was preventing my wife's laptop from putting the screen to sleep at least twice in the past year.
I have to set aside time to make sure the 3 Windows PCs in this house are up-to-date and that the virus/malware/spyware scans are still running and up-to-date. Need to install updates? Come back in an hour, kids. Oh, the computer is running slow? Sorry, it had been going to sleep and not waking up for the scheduled scan so you'll just have to deal with it until the scan completes in a couple of hours.
What's that, you say you're getting strange pop-ups and search pages? Hold on, let me clean out the spyware that you insist that you didn't install.
If I could replace every Windows PC in this house with a Mac I would do it in a heartbeat. They do tend to just work. Better.
As for crashing and freezing, I've found that to be more of a hardware problem than anything. I've had crappy, cheap PCs shut off, BSOD, etc regularly for no good reason. I've never had a Mac do that unless there was defective hardware.
Thankfully, the hardware in this house isn't poor quality and everything has been reliable since new and some of it is nearly 7 years old. Sometimes you do get what you pay for.
I do like OSX quite a bit better than windows, and being able to sync everything between my devices seamlessly is a major plus. They really do a great job with OSX. Physical quality on any recent Apple device is really good as well.
Agreed, and this plays towards the "it just works" part of Macs.

Tried syncing Android with OS X?
IOS vs Android is a different story all together though. My ipad air and iPhone 5s lock up and browser crash more than I'd like. Browser tab reloads are almost unbearable sometimes. I'm a lot more productive on Android as well, due to how Android handles multitasking. IOS is getting it's booty kicked, and the gap is not closing it seems. If Apple can get its act together with IOS, then I probably would not be switching to the galaxy s5 (when it comes out). They've got a few months to do it though. I hope they do.
I have the opposite experience. Not saying your experience is wrong or invalid, just not the same as mine.
I have a GS3, it just got updated to Android 4.3. I wish I could roll back the update to 4.1, a lot of annoying bugs were introduced with this particular version of 4.3. Androids openness is also its downfall, having to watch out for nefarious app permissions is only part of it. I've had to delete countless apps that launch background services even if the app itself is never launched. Over time, with enough such apps, the battery life and device performance becomes unbearable. At one point my GS3 was going from 100% battery down to 5% after 7-8 hours. After removing apps that were misbehaving? 80+% after 7-8 hours.
My wife had stability and other problems with iOS 7 on her iPhone 4S ever since upgrading it. We were able to upgrade her to a 5S for no cost, it's been rock solid. She hasn't had any of the problems that her 4S had running the same version and I even did a restore of her 4S backup to the 5S.
Over the past 5-6 years or so I've had a number of iPhones and Android phones. I thought the GS3 would finally be a winner, and I can't say the hardware portion has let me down because it's worked fine, but Android...I can't wait to get rid of it. After 3 Android phones (OG Droid, Droid X2, GS3) and 2 iPhones (iPhone 3G, 4S) I can't wait to go back to an iPhone. What am I holding out for? The same thing that drove me back to Android; A larger screen.
However, having an iPad, I could probably go to a 5S and be perfectly happy with its size.
Android is also great for people that like to tinker and customize. I used to like to tinker and customize. Now I just like things to work and I'm slowly weeding things out. There's a reason why I'm almost 100% Apple and it's not because of the Kool-Aid.

I use what works the best for me.
EDIT: Forgot to mention we also have an Android tablet. It, too, was buggy here and there. Not necessarily due to the hardware but the version of Android. It got used for about 6 months, then put away in a desk drawer. Now it gets loaned out to my wife's friends so that they can read books in her Kindle library.
With as many options as there are out there, I see no reason to be frustrated and suffer through using something that doesn't provide what I want out of it. I swear there are people that are so loyal to a product or brand that they'd still use it even if it made their eyes bleed.
