The time might be a little different, but they are BOTH REALLY GOOD!!!
Have fun watching! I love to watch taiga dramas so if anyone needs any recs, don't be afraid to ask me!
Both are Taiga dramas that focus on the life of a prominent female in the Shogunate - who both have extremely strong and straightforward personalities.
Aoi is another portrayal of Gou-Hidetada marriage life. However Aoi started off with both of them already married (i.e. it will not start from their childhood) and focused more on the affairs around Tokugawa big family as well as more details on Edo shogunate administrations.