The 2 is based off the 112. I happen to have one although its not in use right now. The reason I bring it up is that the Rowland is very forgiving and possibly even laid back in the high frequencies. I wouldn't consider either the Ayre all Cary to be all too warm sounding. They are both pretty neutral and much more detailed.
One other thing you mention as important is imaging. The Arcam is good in this regard. The Ayre and Cary are much better, especially the Ayre. The Rowland, however, is not so good. (I'm talking about my 112 which basically has the same power amp that your integrated does.) I really have no idea why but I thought I would mention it because imaging is one of the qualities you point out as important.
One other thing you mention as important is imaging. The Arcam is good in this regard. The Ayre and Cary are much better, especially the Ayre. The Rowland, however, is not so good. (I'm talking about my 112 which basically has the same power amp that your integrated does.) I really have no idea why but I thought I would mention it because imaging is one of the qualities you point out as important.