Don't I recall that Lucifer tanked a shot from Michael that basically recreated the big bang.
Tanks a point-blank universe-busting energy blast from his brother Michael, without even a scratch on his pants. Context: Michael is his equal in power, and together they formed the original Big Bang under God's orders (Michael providing the explosion, and Lucifer shaping the resulting matter/energy into the universe). Here Lucifer assists Michael in resurrecting himself by destroying Michael's physical form and releasing his inner energy uncontrollably.
Downplayed, Beyonder could have been banished by Doctor Strange and beaten by Phoenix Force, but then again Phoenix Force did get beaten by Thor... And then downplayed Lucifer is universal, so I would just say Lucifer wins, if we lowball them to the point where it's borderline trolling.