The slagging on Android earlier here is complete horse manure. Sounds like someone who had a bad experience with a crappy Android product. I have similar anecdotes from friends about iOS and Apple's Iron Fist about anything that goes on their phones and tablets.
The truth is, both solutions are pretty much equally as good. I'm running on an Nvidia Shield, a popular solution on Phantom Pilots, and have none of the issue that were leveled as criticisms against Android earlier. The Shield is an exceptional tablet, runs Litchi and GO without problems. It's also an excellent entertainment platform -- better than any iPad for that purpose, IMO, and that's a hardware statement, not a comment on Android vs. iOS.
So, bottom line is this: Get a tablet operating system based on your preference. If you like Android, get an Android tablet. Just make sure you get one that is capable of running the software. Because Android is an open system supported by many vendors, there are more options than there are with the iPad. This is, net, a good thing, as it makes Android available to far more people (no cheap iPads), but it adds complication of having to do a bit more research up front before purchasing.