Neo Tinsel and Croconile are two of my best fighters. I haven't levelled up Black Jackal past 10 so I don't use him as much but he's good when he's there. Achilles is one of my Go-To's for Diamond types and pure Champions. Not sure about the others - I don't have Lollipop and Helios yet and Strongshine, Tower, and World are not raised up past 10 so I don't use them as much.