actually i've seen the ALL of the OVA's of Samurai X. I find it really sad though
especially in the Tsukiohen(Trust and Betrayal) where Tomoe dies and in the Seisouhen(Reflections)....actually i'd have to say Seisouhen was the saddest because that had Kenshin reliving all of his horrible memories but i do like how he has a son who looks JUST LIKE HIM (Kenji) despite the fact he resents his father...
all in all i'd have to say i love the OVA's of Samurai X