In short, the HD212 will walk all over any 1x12 or 2x10 cab, I have a Baer ML112, which falls into the category of a super 12, it still however cannot deliver anywhere near what the HD212 can, but still out performs a 2x10.
I moved over to Bergs from a Markbass CMD102P combo several years ago, when I did an A/B test at Bass Direct, a single AE112 wiped the floor with the Markbass combo for clarity, low end, and volume. It seems their heads are not bad but their speaker cabs are not the best IMHO.
Tonally the HD series are different to the AE series, they are a lot less brash in the high mids, and a little more pronounced in the low mids making them a lot warmer and less in your face! On a big stage the HD212 with a good head will easily hold its own in most situations, I cannot imagine a situation apart from a loud metal gig, or a large arena where you would get anywhere near its limit, especially with P/A support.
The cab is in Leicester at my home address, if you are potentially interested then you are more than welcome to try it out.
I have a Shuttle 9.0 which you can try it with, alternatively you can bring your own head along as well