I LOVE my iPad and as for that or an Android tablet, IMHO I wouldn't touch anything but the iPad (even if it is a bit pricey) because with an Android you still have to be concerned about virus problems which as far as I've experienced, doesn't happen with the iPad.
As for the choice, I love my iPad Air, it's much easier to carry around than the older version but it really comes down to choice of the size of screen that suits you. As suggested earlier, go to the shop and have a play, you should then be able to make an informed choice. I always buy things from John Lewis because of the free warranty and I think the iPads now come with three years, brilliant. Hope you find what suits you best Garador.