THANOS(BLAZE)
Vs
LOKI(POWdER-man)
Pretty good matchup hear. Loki may not be a match for Thanos, physically. But, his awesome mystical powers definitely make up for that. He is a powerful spellcaster, only behind Odin and Karnilla in terms of power in Asgard. He can perform many different kinds of spells and enchantments.
Both characters are extremely cunning as well, and both have masterminded their share of brilliant schemes. Thanos definitely has the edge, scientifically, but I'd give Loki the edge in the mystic knowledge. Still, it has been said numerous times that Thanos has studied the black arts and has enhanced his already impressive powers via mystical means. So, he's definitely no fool when it comes to mystic knowledge.
With his knowledge of things mystical, and his versatility with his cosmic and Eternal powers, Thanos is more than capable of dealing with Loki's magic. The Titan also has extensive knowledge of Asgardian physiology. But, Loki is a son of a giant, so it is debatable whether or not he'd also have any info on giants as well. Still, if he's got the stats for the Asgardians, in my opinion it's reasonable that he's got the stats for all of Asgard's races. Also one thing to consider is that the majority of the Norse gods, save for Odin and his brothers, descended from. So, it could be argued that there would not be much of a different between the typical Asgardian's vital stats and those of the giants.
But, whatever. I'm not really wanting to get into any mythological debate, so I'll leave that as is.
As for Thanos' powers, he's shown and said to be, as strong as the Hulk (base strength). He is also one of the most durable beings (short of cosmic gods) in all of comics. He's stalemated Tyrant, a being that beat the crap out of the Silver Surfer, Gladiator, Jack of Hearts, Ganymede, and Beta Ray Bill combined. He's beaten Thor with the Power Gem and Warrior Madness when the likes of the entire Infinity Watch, Silver Surfer, and Beta Ray Bill could not. He's even stalemated Odin in Asgard. He's even survived an entire planet exploding with no signs of damage at all.
He's also extremely quick and agile given his size (fast enough to keep up with Gamora).
He is also able to increase all of his physical abilities via cosmic energy manipulation to higher levels, as shown when he fought his doppleganger who had more raw power than he did.
Thanos is also one of the greatest planners and battle strategists in the entire MU. Loki is up there in the mastermind department as well, but I'd definitely give Thanos the edge as far as battlefield tactics go (they were never Loki's strong suit). With the battle taking place in an arena such as this, there'd be no room for surprise attacks as both combatants would be sent to the battlefield at the same time.
As far as hand to hand combat skills go, Thanos definitely has the major edge. Loki was never really one to work on his physical fighting skills, whereas Thanos honed his fighting skills on some of the worst planets in the galaxy for hundreds of years. He also personally trained Gamora, who is one of, if not
the, best martial artist in the MU. He's a master of many different kinds of combat forms and techniques that would/could be used in a fight.
He's also has tons of resources at his disposal from the oft-mentioned stasis gun, to powerful shields that are able to take blasts from a being twice as powerful as Galactus, to teleportational equipment, to various other bombs and weapon.
All in all, I say that this is a good fight. Loki's mystic powers are up there and will keep Thanos on his toes. But, after a good fight, Thanos walks away the victor.