Superman Red Son is absolutely a 5!
Even though I've never liked Superman's portrayal (just in few cases), Superman Red Son makes me change my opinion about him, this is one of the Best Elseworlds i've read so far. The Remake of Batman, The Batmankoff is nothing but amazing, that Guerrilla Warfare outfit lets you know that any costume works out for our Bruce... Also, the Green Lantern Marine Corps (Hal Jordan looks great) are the nicest revamping i've seen for the Space Police.
But well, the ending is cool, just like the main plot. And Kal-El's "Big Brother" façade is absolutely. AMAZING... The only flaw i can find is the protrayal of wonder woman, she's still sexy as hell, but her costume is not so nice.