Best southpaw vs southpaw knockouts?

Pretty random question but I was talking about this with my boxing fan pal today and we drew a blank, the best one I could think of was Ponce de Leon against Sod Kokietgym.

What were some the of the cleanest southpaw vs southpaw KOs?

https://youtu.be/0d-TgjaX4t4?t=7m22s

https://www.youtube.com/watch?v=uQZt_CUHmIw

Stevenson vs Williams Jr was nice.

http://www.youtube.com/watch?v=SwsyTOlZZi4

Rolando Navarete vs Cornelius Boza-Edwards
Hagler vs Seales
Hagler vs Hamsho I & II
Tarver vs Harding II