Hi there! I have a kindle and an android tablet. I read more on the android tablet than the kindle but it is heavier than the kindle. It really kinda depends what your specific needs are to which item would fit you best IMO. The biggest reason I chose a kindle over the other competitors is that Amazon usually has the best book prices and I get around 5 or more free books every week from Amazon. I subscribe to a blog who sends out an email listing all the freebies and tells a little about them. Saves me more time so I can quilt.....
PS My battery lasts a really long time. Most of the time I don't even turn mine off - I just let it sleep....