Jubilee could play a strikingly important role in this conflict, or she could do reletively little. He ability allows her to be a large distraction to both Storm and Jean. She could be a major asset in taking out one or both of these two powerhouses. As far as physical damage however she can do reletively little to most of the other x-Men, especially Rogue and Wolverine. After this, Jubilee has a slight chance of puling out a victory.
Beast is as limber as a squirrel.
He can probably easily fend off attacks from Wolverine, Gambit, Cyclops, Jubilee, and possibly Rogue. However his attack is reletively week on opponents that have a higher physical defense. He has little chance against Jean or Storm, and in a strait out fight Wolverine would cut his ass to pieces. His best hope is to stay back in the initail push to remove the powerhouses. Then when the initial push is over he has to work like hell to partake in the downfall of Wolverine and Rogue.