That's a pretty awesome set of champs you have to decide on...if you have Masacre and Red Hulk, then Domino will be amazing for you.Angela has some pretty nice damage too.Ghost is awesome, but pretty difficult to learn (so only invest into her if you're good at playing her).Really you'd have a good champ no matter who you chose. I mean I probably wouldn't choose Ultron, but apart from that, everyone in that list is pretty dang awesome, and you'd get something out of them.