DC's Lucifer vs. Marvel's Mephisto (in his realm)

Mephisto is at his most powerful in his own realm, but is even that enough for him to keep Lucifer from taking over by force?

Originally posted by BlaqChaos
Mephisto is at his most powerful in his own realm, but is even that enough for him to keep Lucifer from taking over by force?

Lucifer with ease

Lucifer.