Blue Marvel is substantially stronger than Thor all on his own. Wonderman comes in just underneath Thor in power, so the two of them against Thor is overkill. When I reference Thor's power, I am talking about him with Mjolnir, but if you really want to be honest and fair (which not many people want to do), you wouldn't even count Mjolnir. If Superman, Blue Marvel, Sentry, Wonderman, or any other top tier being was shown with a tool of Mjolnir's might in every fight, they wouldn't count that to be a part of that character's strength (not to be ignored though). I love Thor, but in all honesty, he's simply a much more powerful version of Luke Cage without the hammer.