Why do people praise MW2 so much?

alright if you think that black ops is better then mw2 then you are crazy! now i am not saying that mw2 is the best because it has alot of problems, but black ops didn't fix mw2 mistakes it just took them and brought them to the other extreme! if you ask me the best cod of all time is waw... sure there where alot of moders but the moders stayed in zombies so it didn't take away from actualy online play. also the guns where very realistic (even the mp40)