Ehlers and this is overlooking that he's more exciting to watch....he's just the better hockey player. And it's indeed a case where it's a easy choice.
I would say, it can change secondary to upside (if Drouin hits another gear at some point- as he is still young) but Ehlers is indeed easily better right now. There's about 1 other guy in this league that is more dangerous with his speed game than him right now. Guy brings his wheels every other shift.