I've experienced some of what you all are saying in that I migrated from Apple to Microsoft; however, I really didn't have any difficulty syncing between the two (I think Apple does a good job in this area all things considered). Then when I left all iProducts it wasn't an issue of course. Now though, for my needs I'm thinking a Note 3 will suit me better than my Nokia - that's what prompted my question about syncing between my SP3 and an Android phone.
Given what you've said above, are there ways you know of to sync calendar, contacts, email (I realize to sync browser info I'd have to run Chrome on both the phone and SP3) between the SP3 and an Android phone? I know there are apps to get the information from my SP3 onto an Android phone, but I'm really interested in knowing the way(s), if any, to keep that information synced. Using OneDrive I'll be able to readily keep files available on both, which is necessary, but if you know anything about syncing the ordinary stuff like calendar, contact & email, please pass it on. Thanks.
Other than MY fault for syncing a blank directory over top of my OneDrive from my phone, I have had very good luck with FolderSync for Android. I take a photo with my phone, a few seconds later, it is on OneDrive. I edit a document on my phone or any of my many PCs, and it ends up on all other devices. It works very well in my opinion. As with EVERYTHING, I do keep backups too.