Wait for the code update then decide. The games are completely different.
Some people LOVE AC/DC because freaks for flips and action have been waiting forever for a game this fast with tons of flipper action. SM was the king before this.
Some people really love the X-Men theme so they enjoy the game, and it's not a bad game I guess but I just can't find anything special about it. I don't get the moving ramp and the night crawlers are unfortunately nothing we havn't seen before in MM.