Agree with pretty much everything you said. The show seems to get better as it goes on, and I don't think there has been a single weak episode in Season 3, something I can say about very, very few seasons of any show. I don't even mind the love aspects which seem to be hit and miss with fans. I think the relationship is handled maturely and, despite being a major plot point, it doesn't dominate or smother the show. Plus my heart aches for Olivia (dramatic or what), Anna Torv has done a wonderful job... both times.
Can't make a post about Fringe without mentioning Walter Bishop. I've just got an erection.