Thanos with tech? if so then he beats Broly but if not then I don't really know the fight could go either way but I would side with Broly over Thanos (don't bring up him beating Silver Surfer that was when SS was much less powerful he's way stronger now and could easily beat Thanos with his new upgrades) in that situation unless of course this upgrade from death is really an actual upgrade and not just a title thing . What does the upgrade from death do? I mean she's a cosmic level being if it's a major upgrade then he definably stomps can someone describe what this upgrade from death can do? Haven't really read much of Thanos other than Infinity Gauntlet and Annihilation wave stuff.
I go with Thanos, he has better feats and would lose his patience after a minute of a 9 foot tall glowing steroid addicted psyco path yelling " Kakarot" in his ear all the time. The fight will go well for a moment but I see this as the end...