It's interesting. The B-72 seems to be a less expensive, stripped-down version of the Valley. A bit faster, true, but the rocket armament is the same. Bombs are stronger (nine for the bomber vs six for the airship); no broadsides for the bomber, of course. I'm a little disappointed that it's only a squadron of one. Being a heavy bomber, I was hoping for a squadron of two. Piercing munitions for the rockets will certainly help.
Spartan seems to be releasing models for the core seven nations to fill every possible play style. Lots of models filling in the "gaps" in armament and capabilities.
I like the stats on the heavy destroyer, and I think that's the first FSA model to get the "high angle" MAR.
Agreed on the aesthetic. I love the look of the Avion strike bombers, and the B-72 seems to be a much larger version of that.
I haven't taken the time to do a line-by-line comparison of the rest of the stats, but I guess I'll have to do that at some point.