I agree that the stats should be displayed. However, with the dev team working to fix many of the bugs this game has this is a lower priority than many other things. Most of the crown units are good, but it all depends on your personal preference. In order for you to determine it for yourself i would recommend buying one of each of the units you think you might like and test them out.
Signature made by yours truly but inspired by the art of Aametherar the orc. Taking requests for sigs, PM me.