Things that should be simple are made unnecessarily complicated on an iPad.
I think you need to examine this process from the viewpoint of the intended user.
For the iPad, you set up sycing with iPhoto and iTunes, and let it work. Plug in camera, grab photos, plug in iPad, sync photos. Minimal interaction outside unusual situations. (I just hit one recently where I had to rebuild my iPhoto Library to rescue orphaned albums. It fixed things up jut fine).
For some other tablet, "plug in and copy files". RIGHT. If that involves navigating the file system and/or selecting what to copy and where to copy it to, by hand, you've just lost the person who is supposed to be using this stuff.
I own a Nexus 7 and iPad Mini. I can sync my files to both. But at no time would I ever recommend to a NOVICE the Android solution from an ease of use perspective. I'd do that if and only if price were the dominant and overriding issue.