I don't know about you, but do keep in mind that these are two very high level players. I think their opinions on the subject are valuable.
the mg42 is objectively superior to the MG34 in a direct advantage-disadvantage assessment... ie: the MG34 has no advantage to the MG42 aside from a 10 mp discount... to say that the 42 is the worst without considering the mg34 is proof of subjective bias...