i'm less concerned about the difference between android, windows, and iOS, and more concerned about the dismal state of wireless carriers in the states. the new plans from verizon and att are a dealbreaker for me to go with a subsidized phone from them - that's probably want they want. right now my money is on those $350 dollar nexus phones and prepaid plans like that t-mobile or taptotalk.
i pay around $80 a month for unlimited data from verizon, but if i want to keep that, i have to buy a $600-$700 phone from apple that probably won't do anything different that a $350 phone from google...maybe a better camera... it's not worth it for me and probably a lot more people like me.
i think apple's reign is over, partly because of inertia, partly because other companies have caught up, but more from carriers fed up with subsidies. If apple really wants to wow me, bring the cost down and start working on cheap, prepaid services like t-mobile. My next phone right now will be a nexus purely from a cost vs value perspective.