iPad Air 128GB LTE.
Seriously, though, I've got a bunch of tablets (not necessarily the ones on your thread title) and the iPad is the one I reach for the most. Surprisingly, Chrome on the iPad feels like a better experience than Chrome on Android (although I'm thinking this might boil down to the difference in aspect ratio since I actually like Chrome on the 4:3 HP TouchPad).
I guess this really depends on what you're doing. Videos, etc are well suited to 16:10/16:9. For me, though, web browsing, PDF, etc are better on 4:3.