Nah man, Tyrant (at his original power) destroyed planets in his fight with Tyrant; this is actually widely known. However, what state (hungry, full, etc.) is unknown. He beat Tyrant and shrunk him to his current size and power.
As for those machines, his machine convert energy into a form of energy for EASIER consumption. He can devour a planet on his own, his machine in a way cooks his food for him. Ain't like he can't eat it raw.
But clearly this is not Pre-Crisis. They are at another level, thus it should be specified if any Pre-Crisis characters are used.
Since it doesn't and we both know Surfer would lose against PC Darkseid, current Darkseid isn't going OE on Surfer win. Should he be able to? Yes. But will he? Ask heat vision what it think's of the Omega Effect.
Forget the Source, Superman > Source. Heat Vision (according to DC) > Omega Effect.
Well as mentioned before, he was able to seriously damage Surfer's metallic body with his Omega Beams, so yeah I'd say he can probably take Surfer out.
Tron, can you give the issue in which Thanos beats Surfer? Not Surfer #59, neither of them had their power and Thanos was losing at first.
It is illogical for the Omega Beams to affect Surfer, he can absorb or manipulate any form of energy. Maybe he wasn't expecting them... What crossover was this?
Very true... I suppose f he can't see it, and can't absorb it, it would definitely hurt him. Thanos beating Silver Surfer is very possible however. Thanos without any enhancements is at the very least Silver Surfer's equal.
Darkseid is certainly not equal to Thanos, though. Not with the cosmic cube, or the infinity gauntlet, of the heart of the universe. Not even normal Thanos.