All Microsoft around here. My signature might give an idea on devices. Fiancee also has a Lumia 1020. In addition we use OneDrive as our cloud and Outlook as emails. Xbox One is pretty much the center of the living room. Both of us default to Bing as search engine too.
Outside YouTube I don't really use any Google services and that's cos it doesnt really have an alternative. No Apple around here whatsoever. That said, I do have access to both Android phones and tablets as well as iPads and iPhones in my family, I fail to see them offer any real incentive over my current setup. That said, I don't really "mind" if someone is invested in another ecosystem, I'm more of a "pro ecosystem, regardless of which one it is". It's just beautiful have everything work together. This is why I don't really care for going for different ecosystems for every device, but rather pick the ecosystem that has the best offerings for me in the big picture.
That said, I don't consider Google or Apple to offer me anything better in any segment. WP would probably be the most replaceable for me, but when it comes to tablet/laptop area, it would be Surface 100% for me, as I just totally love it. Also with non mobile computing I really like Windows 8 and I don't see what Apple has to offer in that regard. All non hardware services work amazing for me on MS, so no reason to consider the alternatives.