Actually.. look at things in a different perspective.
Had Nokia actually go with quad core, 1080 screen & making Android device, what do you think of their chance of competition and even margins?
Right now, almost exclusively I can assume that Windows Phone belongs to Nokia already. They have the ability to develop & have a say in both hardware and software, and commanding a premium price since it does not have to go head to head with many manufactures. Just exactly like Apple, even without marketshare they are able to get most of the industries' profit.
Look at the PC market, with companies like Lenovo, HP, Dell, Samdung, Toshiba, & etc competiting with the same software and hardware. There's almost no room for profit, margins for such a market is simply less than 5%. As a consumer yourself, do you even care who your PC manufacture is when you buy a new notebook/desktop? Honestly I don't care. I've been jumping from Acer > HP > Asus over the years until recently which is a Surface Pro.
Obviously, we have not seen the effect of plunging price yet since the market is still growing. But there are signs of crack lines with Samsung missing this quarter target, this is in fact already happening. Poor Samsung that's trying to 'fix' their sales by flooding the market with a new variant of S4 every week.
In the short term, yes Android. However if you are one that's looking for long term growth, I find Windows Phone to be more fruitful.
I'm an investor of Nokia myself with over 30k shares, and I have faith in the company's long term growth.