At the end of the day it all comes down to price and running costs.
I went the Android route because I had an Android Samsung phone which I was very pleased with. I also had the basic Amazon Kindle that just allowed you to read books on it.
For my first venture into tablets I looked at the second hand market. I bought a Google Nexus 7" (2012, we are now on version 2013 which has a forward facing camera) second hand from Ebay France for about 60 Euros (plus p&p) with 32mb of memory. Ok it does lack a couple of things like forward facing camera and you can't plug extra memory into it but it is not a bad machine.
There are gallons of free apps available for Android devices. You don't need to use another medium to load music and films on to it you simply plug it into your (Windows) computer and use Media Player to transfer music.
Basically there is little difference between Apple and Android tablets, they look and function much the same. If you want to go to the top range of products the Samsung Galaxy 10" and IPad are virtually the same price.
he things I don't like about Apple (as opposed to the physical IPad) is you have to use ITunes to copy your music onto it (there are hacks to get round that), far less free software on App Store which they control.
They both come with very little software to enable you to do anything. The Android devices come with all the stuff to connect you to Facebook etc has a calendar and browser. Both have voice recognition although with the Android version you need to be online which I think is the same as the Ipad.
The only thing I have added to my Nexus is the following.
MX Max Pro - Allows you watch films in ANY format. (Free)
EX File explorer - Allows me to copy files between my PC and Tablet over WiFi (Free)
Printshare Pro - Allows you to print anything to a wireless printer. (€3)
Aldiko - Reads any book in any format (€3) - I use this in conjunction with Calibre on my desktop although not required. You can use the Kindle software for free if you already have Kindle books.
QuickOffice - Create or edit MS Word, Excel and Powerpoint documents (Free)
Handrite - Allows you to 'write' quick notes using your finger or stylus (Free)
MyPhone Explorer - Allows you to synchronise your calendar, notes and contacts with MS Outlook over WiFi (Free)
I don't play games on it so there is none of them although there are loads of free ones if you want them.
So my tip is to look for a 'branded' second hand product on Ebay so if you don't like it you can resell it.
If you have not used eithr product before then you will find it a little strange. If you have either an Android or IPhone you will find it easier. You need to stick with it for a week or two before decidng if you like tablets or not.
Neither replace a desktop or laptop computer, they are just an extension that allows you to take stuff away from home and use anywhere.
Both come in two versions, one with just WiFI and the other with WiFi and a SIM card so you can use the mobile phone service to download or send data and emails. I didn't bother with the SIM version because data prices are so high in France and I can always pick up a WiFi connect somewhere. The SIM version of course costs more. Each product comes with different sizes of memory. I have 32Mb in my Nexus and hae never managed to fill it up. I could actually get away with a 16Mb version but as you can't plug extra memory in t it I decided to get the biggest and there was not much difference in price secnd hand.
I had thought of getting a newer model but to be honest mine does everything I want so why bother. Would I buy another if this went bang, yes I would and I would buy an Android device because thats what I have at the moment and it works for me.
So at the end of the day there is no massive difference between the two it is down to personal choice.
One tip, look at the reviews on Amazon before you buy (not through them of course, go for the cheapest deal) keep in mind that there are always people you can't use or don't like things but if a product has a lot of 5 star ratings it is normally a good buy.
Best of luck.