So we all know that Batman is unrealistically prepared for everything and, as of Final Crisis, is now immortal as well: that’s the only plausible explanation for how he can realistically expect to kill Superman and the other members of the Justice League. But what if Batman turned his attention on the Avengers, or the X-Men?
He’d probably have concentrated tranquilizer darts for Hulk, a Symbiote-synthetic suit so he can get the drop on Spiderman, an EMP grenade for Iron Man and Vision, non-metal Batarangs for his fight with Magneto, and his usual ninja-Batman skills would be enough to defeat Hawkeye and Black Widow.
The ones i have a hard time imagining him defeating without Superman would be Thor, and maybe Wolverine because of the healing factor and adamantium claws. i don’t know: feel free to chime in here, batman fanboys
The Viking Blog 