i have lots of fun at top.
top with shield bash, grasp, bone plating, and revitalize is absolutely busted against a LOT of matchups. stomps akali for sure. if you're careful it can be tahm too. diana also has the virtue of being a hard counter to heimer and karma. vayne is an issue because of her 3 hit passive and spammable stealth after 6.
if the matchup dictates i can't play diana(not often, usually only nasus pantheon kennen and jax give me trouble) i'll just run
with e build, rush a
, and then lol until im about to pass out as I max e and spam it, getting near perfect farm while also slapping people with deceptively high aoe/damage over time