Honestly I liked every other OS but Windows intrigued me the most. Yes it has its pitfalls but none too bad at all. I personally feel that Apple's OS is just too simple and boring. 7 won't make it any better for me either. I see what you mean about something like siri or google now. A lot of people love that extra. I personally never use it. Pretty much ever haha.
I went to blackberry and found that the new OS is awesome. The HUB looks great.. But there are so many bugs with it. It was unbearable. I am sure it will improve but I just could not deal with it.
As for android, it was just too laggy. Same 'ol with them.
So I thought to myself.. Why did I leave the 8x? What was wrong with it?... Pretty much nothing for me. I love the buttery OS and its new.. But not too new.
Anything else you'd like to know?? Haha hope I answered your questions.
Pretty much spot on for me as well. iOS was "perfect" for the first few weeks because it way more apps (which I didn't care about in the first place), better support with updates, Siri, etc. Then, things just got too stale, and it took way too long for me to do things that I use to do in the blink of an eye with Windows Phone (like glancing at email quickly through a live tile, vs having to open the mail app, etc..). I've already gone down the Android route, and that was way too laggy and buggy for me as well: the only Android devices I will ever consider are Nexus devices, and only GSM Nexus devices at that.
Blackberry, as you said, is way too buggy, and basically in the same state windows phone 7 was in when it first came out. For me, it makes more sense to stick with something a little more established (and is finally getting attention from developers and companies) vs starting over with an OS that you just don't know is gonna make it or not
For me, I'll most likely keep an iPhone and a Lumia. I hate carrying two devices, but there isn't a single OS that is 100% for me yet. Windows Phone is probably at 95% for me...