Episode 4 of Falcon and Winter Soldier had me contemplating the architypes these characters represent. If you haven't seen the latest episode, I recommend watching it first because it actually does a lot to develop their characters (also spoilers are bound to come up).
Anyways, both characters show a clear commitment towards a guiding set of morals. Zemo with his unwavering commitment against super powered individuals. Cap with his fight against terrorism in the name of justice. Cap obviously believes himself to be good, but his actions don't always reflect that. Meanwhile Zemo seems to be aware that his zealous actions are morally problematic, but doesn't really care.
I realize it's kind of a silly question, but the ambiguity of the actions these characters take has me wondering where they would traditionally fit on the good ole' alignment chart.