Thanos VS Lex Luthor, Red Skull, Ozymandias, Batman, Dr. Octopus.

and Norman Osborn.  
 
Team has a month of prep Thanos has none. 
 
Who takes it?, no erasing from existence, morals on.

Assuming the team is able to cooperate with each other, and Thanos doesn't have the IG, they might be able to take this.

and Norman Osborn.   Team has a month of prep Thanos has none.  Who takes it?, no erasing from existence, morals on.

Most of those characters beside batman and luthor aren't even really that smart.There are smarter people than Dc octopus,Red skull,Norman Osborne,and ozy.Heck red skull not even that smart he's just a good tactician  and Osborne too.But they would win thanks to Batman and luthor.