In my limited experience, I would say the last forty feet of Hi Coroner.
This third and final pitch starts with unprotected easy-ish moves up to some fun, gently overhanging stemming moves (get in a bad cam, then a good cam). In the end I had to really commit to these moves and climb through without placing any additonal pro. Topped-out on slightly slopey, muddy ground while fighting a pump and trying not to think about a potential 25 foot fall. Kinda spicy, very exciting and fun.