I'm not sure that that's a fair comparison. The fact that Kane is touted as the sole creator of Batman is monstrously unfair, I admit, but credit where credit is due, the guy WAS a good artist, and without his artwork and character designs, Batman would likely have been a very different character. Liefeld, on the other hand, is NOT a good artist, and pretty much created Deadpool as just another throwaway character - he had nowhere near the same effect on Deadpool that Kane had on Batman.