Here is the update from the 2.1.5 console patch notes. This update had a dramatic impact on the play of the AI, but as I’ve said elsewhere, by simultaneously introducing an AI upgrade AND customization, it makes it really hard to know whether what you’re seeing is the improvement in the base AI, or something to do with how the opposing player has tweaked their settings. Overall, these improvements tend to magnify the ‘good luck’ that the AI gets, since it is better able to take advantage of it than it used to be.
I think it is fairly well-acknowledged now (at least among the players) that there IS a difference between console AI (which is easily explained by the change log) and the process that refreshes gems (which they have claimed should be the same on both systems, but which players who play both platforms generally seem to think is more streaky on the console version). This second difference is the one that causes more player rage among console players, at least in my house.