Marshall ECC83 vs Telefunken 12AX7 Tube tone comparison in a Peavey XXX amp

In this video I sound test 2 tubes that test good, a Telefunken ribbed plate round getter 12AX7 and a Marshall China made Shuguang ECC83 triple mica gray pate round getter tube. You be the judge on which you prefer. Using my IBANEZ RGD61ALET guitar through a Peavey XXX combo amp.