At the moment I run an iPad 1. It is an incredibly lousy piece of hardware - the screen is low res, it is slow, and Safari frequently crashes. I hate it.
However, my needs are fairly simple - I only run 3 applications regularly. The web browser, Zinio (to read magazines), and Kindle (to read books). My main requirement is that it has a high enough pixel density to read without having to zoom in all the time. Oh, that and - proper multitasking. The iPad doesn't cut it - it only loads one webpage at a time.
I only have three choices - the Asus Transformer TF700, the Amazon Kindle HD, and the iPad 3.
I am completely opposed to giving Apple any more money given their recent douchebag behaviour. But the Android competition doesn't quite cut it either - the Asus is expensive and scratch prone, the Kindle HD is plasticky. Looks like I will soldier on with the iPad a little while longer, or cross my fingers that the rumoured new HTC tablet will cut it.