Now that Set List Maker is available for both iOS and Android, it might be helpful to list some pros and cons of each platform. This is not the place to debate iOS vs Android in general, but for music apps and Set List Maker in particular there are some important differences. I'll list a few that I've seen, and you can add your experiences below.
Hardware performance: I've been developing with a Google Nexus 10, which is supposed to be one of the fastest and smoothest-running Android tablets available. It doesn't feel as fast and smooth as my iPad 3 when browsing the web or using other apps, but it seems comparable when running Set List Maker.
Screen aspect ratio: I think the 4:3 aspect ratio of Apple iPads is more practical than the 16:9 aspect ratio of most Android tablets. A letter-sized document displayed full-screen in portrait orientation will be about 10% larger on a 4:3 screen than a 16:9 screen of the same size (an A4 document will be about the same on both screens). The split view layout used for much of Set List Maker also works better on a squarer screen. Of course, Set List Maker's show view includes customizable screen layouts, so you could create a layout that makes good use of a 16:9 screen.
App feature support: The Android version is just getting started, but in the coming months it should gain nearly all the functionality of the iOS version. One feature that I don't plan to include is support for document formats other than PDFs. I'll update this post, and the website documentation, as I find other differences.
File management: A common complaint about the iOS version is that you can only add recordings through iTunes, and documents through iTunes or the Open In button. The Android app can link to any file on your device, so you can manage your files however you prefer. It still does not sync files across devices ... you'd need
BandHelper to do that.