Ergo Proxy also includes one of my top 10 favourites episodes from any TV series, anime or otherwise. When we get to it, I'm fully expecting people to react with, "Wait, that one?!"
I don't normally worry too much about how good an individual episode is among those of a good series, but there are times indeed when an episode can blow you away or really stick with you.
There is an episode in Clannad AS that is really good and such a nice change of pace from the pain & suffering before it, though likewise I won't spoil it for anyone who hasn't seen the show yet. Also VE has that episode as well which is also really again (again won't spoil it! ).
Let's hope that one was the longest they get, eh? For everyone's sake!
Don't worry I read it all except for the links that had the spoilers in!
It's interesting that Iggy is shown as slightly camp although it doesn't come across in the subs and I wouldn't catch it by what he says or how he says it, unlike everyone's favourite camp Android from Star wars.