I've recently been reading the Looney Tunes cross over with DC Comics and have been enjoying the mess out of it. The cool thing is they actually come up with some cool plots to make the cross overs work better than I thought. I'm not gonna tell ya what they are about but just mention who got crossed over with who. Buggs Bunny and the Legion of Super Heroes, Martian Manhunter and Marvin the Martian, Jonah Hex and Yosemite Sam ( with Foghorn Leghorn ) , Wonder Woman and The Tazmanian Devil, Lobo and the Road Runner and Wile E. Coyote, and Batman and Elmer Fudd.
There are more but this is all that I've read this week so far. I've been reading it on COMIXOLOGY. Think "Netflix of Comics".