Boy was "Luthor" an amazing episode! I actually want to rewatch it again since there were a lot of memorable scenes. Man, I loved this one. Clark Luthor seemed so sinister and menacing, he was a totally different person from our Clark Kent. That "Get up!" shout to Tess was awesome. I wonder how Clark Luthor damaged the Watchtower before our Clark Kent returned to his world. Seeing Tess, Lois and Oliver all about to shoot him was a sight to see. I really love all these comic book references such as Earth-Two and Ultraman. What a clever way to have Lionel return to the show too without him being a clone or an unknown apparition. That line he delivered at the end was great too: "Wouldn't want to miss how it all turns out."
My three favorite episodes this season so far would now be: Homecoming, Luthor, and Lazarus.