While I've never seen either Texas Massacre movie, I did see some cheap knock-off where a guy went around drilling through people with his guitar.  (Yes, the guitar had a drill, and yes, the serial killer was a rockstar.)  While that is completely irrelevant I still think Ash would win. 

I'd like to see Killjoy and one of the Killer Klowns from Outer Space go toe-to-toe though.  That would be an interesting fight.