That unit comparison tool is handy for people willing to dig into the individual fields of the blueprints. I'm working on distilling that information into user-friendly comparisons at the supreme commander wiki at
Main Page - Supreme Commander Wiki - a Wikia wiki. For instance, see
Cybran T3 Strategic Bomber - Supreme Commander Wiki - a Wikia wiki where there's a unit nav box in the top-right to jump around between all the bombers, and text descriptions of the relevant differences.
The wiki community needs more people contributing these kinds of useful comparisons. If anyone would like to contribute, please come over to the wiki!
-TaviRider