Comparison with Vagabond doesn't sit well for me. Vagabond is kind of a suoer detailed, realistically drawn manga. This, symbolic, surreal even. I love both, but I love this art style more.
The fight scenes use wild brush strokes to depict movement, wind directions... which can seem messy and rough but exactly is beautiful because of that quality.
Many frames are so magically composed, and it can get real symbolic sometimes, the most recent instant is chap 141, the bright lanterns shining in total blackness (substituting of course for the troupes drawing to the fight scene, but the composition of the drawing is surreal and ghostly)
I don't even need to get to the scsenery drawings. They're insane.
The best part is still the episodic stories for me. Can't top that. I don't dig it as much, the whole Edo arc. Then again, my bias is history, geography lessons and a lot, lot of traveling.
Must re-read. Used to think of Retsudo as a straight forward villain, power hungry. What's his original deal with the Itto family anyway? Did he do that out of jealousy or did he care for the Tokugawa clan, as towards his loyalty seems really believable, and he's even sympathetic.
Did he find an heir in Daigoro? Certainly he deserves his death for all the things he did to the Itto clan, but the Yagyu seems to have a noble role for the shogunate.