I wonder if Kougaiji hadn't rescued Yaone, if she'd been taken instead of Kanan. Man, I could do a five-story set just riffing off of variations of that. Yaone gets taken instead and Kanan is still with Gonou when he meets Gojyo some other way! Yaone and Kanan meet in the cell! Yaone fails to save Kanan, but does poison the guards and meets Gonou on her way out! Kougaiji shows up to rescue Yaone, finds her dead and Kanan alive, and rescues Kanan instead! Etc!

The whole four-way Kid!Ikkou flashback section, when it cuts from Goku wailing to young Sanzo thinking, "Did I hear a voice?" just kills me.