Idk, this one is just so awesome. It practically completely focuses on their relationship and Sesshomaru is extremely badass in it. Yay! But I actually haven't seen the last 2 yet...

For me its a tie between this one and 'when he nearly lost her in Hell, Inuyasha Final Act, episode 9'. I loved that episode, though I loved reading it in the manga even more, you got to see sides of Sesshy that you would other wise never (or very rarely) get to see. I had to pick 'when they first met,' though, because it's the first time Sesshomaru showed his good side, which made this a really cool and even classic episode. It's by far one of my favs.

i have not seen episode 162 or I.F.A epsiode 9

he was so cool.i also like the part when he almost cried,i almost cried too and when she was revived by the stone,their expressions were so cute

I like all but, I think episode 9 in the Final Act.

I almost cried when I saw how deep Rin and Sesshomaru's bond was, I mean he almost cried. And he NEVER cries! I remember watching the episode and he kept saying to himself how he can't lose her to something like this. It was so cute. It was amazing how relived he was when his mother revived Rin. It's funny how both Inuyasha and Sesshomaru, both have showed more of their feelings.