If it's just for browsing the Web, Facebook and a few games an iPad is likely your best option. Unless you are particularly experienced with Android and don't want to change, the iPad is the most suited device for general usage.
If you want to be able to download word documents or PDFs or do any sort of "work" on the tablet, the iPad quickly becomes a burden and you will find it difficult to add and remove large files or large amounts of photos etc.
Best bet for a "work" tablet is by far a Microsoft based tablet, but Android will do the job just not as easily as a Microsoft one.
Simply put:
For content consumption (Facebook, YouTube, games, email etc): iPad
For work (word, PDFs, transfering pictures and files): Microsoft
Middle ground that'l do both: Android
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