16Gb rMini Cellular.
Was in the US recently and decided to get a new iPad after giving the iPad 4 to my parents and using a Nexus 7 (2) for a little while.
Went with the mini because I've always felt the regular iPad was too large and heavy for extended use and given that it has the exact same specs as the iPad Air, the smaller form factor was more appealing after using the Nexus 7 (which I still think is the perfect size).
I went with the 16Gb version because I have never had the need to store large amounts of media or files on my tablets. I don't even have any music or movies on it now as I always use Spotify, Youtube or Netflix.
However, the one change over my previous iPad purchases is the cellular option I went for this time. Given the smaller size of the rMini, I felt better about taking it out and about than previous iPads and given that you can get very cheap data only pre-paid sims, this seemed like a good option.