I've been using a Nexus 7 tablet for about 4 months now, and it hasn't lagged so far.No!
Over here in Nigeria, we have a saying: " If it's not Panadol, it's not the same thing as Panadol." If it's not Windows in and out, I'm not using. I can't put up with the over customization of Android devices that makes them lag
Meanwhile, some say to get/enjoy the best of Android, go for stock Android like the Nexus. But then, I've seen/heard even the Nexus hang/lag.
Just to know, would you buy an Android powered Microsoft flagship, with the same UI of windows 10M? Why?
I voted yes, but a more precise answer would be that I would throw a Microsoft phone in the mix for consideration. When I buy a phone, I don't choose a manufacturer and then choose from their offerings. In fact, I really couldn't care less who the manufacturer is. I go by the overall phone and its features, also considering price.
Any evidence for that and how it affects you?
Well I also wouldn't go with a Android device manufactured by Microsoft.
I agree with you all that some vendors customize their android way too much. But there's always a Google Nexus with "pure" Android. I recently switched from L1520 to Nexus and not regret at all!
Giving apk support in wp may be a better option than android phone.
Blackberry (RIM) did exactly like that and now their mobile OS is on the verge of death, they're rumored moving to Android.