Strongest beings list, between the DC and Marvel universe:

#1: One- Above-All(Marvel).

# 2: Darkseid(DC), Galactus(Marvel), Odin(Marvel), Lady Death(Marvel).

#3 : Thanos ( Marvel), The Darkness(DC), The Angelus(DC), Durmamo(Marvel), Ghost Rider/ Zarathos(Marvel).

#4: Thor(Marvel), Hulk(Marvel), Superman(DC), Doomsday(DC).