Casually obliterating several universes is far and away superior to anything Trinity Krona did. In all honesty, JLA/Avengers Krona had more power at his disposal than pretty much any character in comic history (sans those who attain the power of TOAA/Presence, obviously.)
Entropy+infinity gauntlet+UN+CCU+SoD(etc. etc.)=an asinine amount of power.
__________________
"I am tired of Earth. These people.
I am tired of being caught in the tangle of their lives."
Although Krona's power could potentially be greater, because he was composed of pure creation energy. Basically, he absorbed the stuff universes are made of, including cosmic devices..