http://www.ibtimes.com.au/ipad-tablet-sales-are-declining-apple-still-leads-pack-1532733
 

It seems the future is going towards more of a blend of a PC/Tablet/Phone all in one. The Convergence of the Singularity is among us.

 
I like:
 
1)  PC
 
2)  Laptops

How does Apple compare to Android and Windows tablets?
Apple is the only one making iOS devices. There are a lot of manufacturers of Android and Windows tablets. When the Android and Windows pieces of the pie gets cut down into individual manufacturers, of course Apple is going to lead.