I currently use BB z30. Love it. Poked around android for a while, meh. Absolutely hated the iThing in comparison. Like somebody else here said. Getting stuff done on the iPhone is painful and with hurdles to jump through. On BB, it's a breeze.
Don't confuse old BB OS and BB 10 OS. It's completely different animal. Since it was released almost two years ago, it's improved to the point where I'm not leaving the platform anytime soon.
Anybody who still thinks that BB is dead, needs have his head examined or do some reading (that doesn't come from paid-by-apple bloggers and bought-with-iToys journalists)
Put your iThing in the drawer for two weeks and try a z30 or the passport if you want the keyboard. Go through some tutorials to familiarize yourself with the OS. Two weeks later, you don't want to switch back. That's what happened to me.