Durability = I don't see how anything there is more impressive than Strange's … Let’s say Thor finds Doctor Strange while the latter is on one of his missions on Earth to weed out supernatural threats. Doctor Strange The Eye of Agamatto flashes brilliantly, blindingly. Strange was on his heels. Thor vs. Doctor Strange (Classic) vs Thor # Doctor Strange (Classic) Intelligence = Knowledge is one aspect of intelligence, but it should be noted that Strange is tactical and extremely intelligent, ignoring his knowledge about spells and magic. Thor's best weapon is godblast and while it can destroy multiple galaxies I think it takes more than that to stop Dr Strange who is bloodlusted. Thor was fast and relentless.
level 1 Doctor strange has been wildly different in power over time, if it's the current doctor strange, Thor very well might take this level 1 Thor has a tendency of mistaking good guys as bad guys like he did with Captain America in The Avengers of 2012.