I think that its very hard to track at the beginning and now with talent and troups what stats the hero effective have with all bonus. In war you can see the health. But i think it will be fine if you can see the addition of attack + troup attack + talent attack and the same for def and health.
This are the basic stats.
An optional info would be managen and + heal from troups, but thats only nice to habe. Others will be help a lot to decide which tourp is better or where set talent points and so on.