Androids are cheaper but are more suspeptible to malware.
http://www.bbc.co.uk/news/technology-23863495
IPads are easier to use and work better because Apple make the hardware and the operating software.
Do not buy an iPad now. A new one is due out in a few weeks which will be better. All new iPads come with Apple's productivity software free*
* Pages - a Word like program
Numbers - a spreadsheet program
iPhoto - for managing your photographs
iMovie - for editing upur videos
Keynote - for making Powerpoint like presentations.