book of Hebrews: better from Greek, or Aramaic?

[DavidFord]

"There's an abundance of evidence that Mark was first"
What are 3 of the strongest lines of evidence that Mark was first?
Which gospel had the priority for:
Mt 3:7-10 = Mk ---- = Lk 3:7-9?
Mt 3:11-12 = Mk 1:7-8 = Lk 3:15-18?
Mt 4:1-11 = Mk 1:12-13 = Lk 4:1-13?
Mt 5:3-13 = Mk ---- = Lk 6:20-23?
Mt 5:43-48 = Mk 11:25 = Lk 6:27-28, 32-36?
Mt 6:9-15 = Mk 11:25-26 = Lk 11:2-4?
Mt 6:19-21 = Mk ---- = Lk 12:33-34?