iPad Mini vs Nexus 7 vs Kindle Fire
Adam Rifkin stashed this in iPad!
Lots of competition in the 7" tablet market between Apple, Google, and Amazon:
There are other things to consider, of course, like ecosystems. There are 275,000 apps optimized specifically optimized for the iPad. For Android, it's in the low thousands (those almost all Android apps stretch just fine, they just might not look so great). Ditto for the Kindle and Nook. Yes, a lot of those apps are redundant, but the pattern has remained mostly consistent in that developers generally make apps for iOS first, and then follow up with Android, then put them in the in the Amazon or Nook stores whenever they get to it.
Lastly, but not least importantly, there's the price. Starting at $330, iPad mini is a lot more than the other tablets which are really good and start at only $200. Considering the lower specs, that may be a tough pill to swallow. Also, it's rumored that the 16GB Nexus 7 is going to drop to $200 next week, and a 32GB version will replace the 16GB at that $250 price point. Regardless, choosing the iPad will likely come down to how invested you are (and how invested you want to be) in the iOS ecosystem.
Also, don't consider the Microsoft Surface for now. Reviews say it's not good enough to buy yet.