get a level 9 feasting hall, level 8 rally point, and 9 heroes in a town with a 1-4 level valley right next to it, and spam take it over and abandon it right after taking it.

It sucks, is boring as crap, and will sometimes cost you archers if you're doing it at 4 am and screwing up because you need one more )(&#$ rose medal, but it got me from knight to Baronet without a single won or bought medal.

However, now i'm having no luck with honor medals :/