Hey everybody likes Shadow. He's got a cool mysterious back story, which is much clearer than Sonic's, and he's morally ambiguous, that means he can get away with anything and you can't call him on it. Sure he can be a little emo, but you'd be pissed off too if the dang government busted up your house and shot your girlfriend. Plus he is stronger than Sonic (owned!).
Though I have to admit, I don't like the dirction they took his character in after SA2. When Shadow was originally brought in, he was awesome. He had great character and motivation (I'm a badass, lets kill these friggin humans). But after His death, they just brought him back with no explanation and no memory. Then they had him follow around a floting star fish (Black Doom) for an entire game just so he can save the world again, which given was kinda cool, but they took the entire game to explain stuff about Shadow we already KNEW!!
But mostly I'm just pissed off that since they memory wiped him, it reduced the chances of a canonical Shadamy pairing slightly (JUST SLIGHTLY! IT COUD TOTALLY STILL HAPPEN!) seeing as now he can't even remember who Amy is.
Over all, I definitely like Shadow better, but I just like the old him a little better. End Communication.
PS-Shadamy Rules!