Board Thread:Questions and Answers/@comment-33273295-20171006170128/@comment-33728484-20171104123336

Cell would struggle a lot to super attack, since he's a villain he starts off with just +2 Ki instead of +6 Ki, and he only shares Shocking Speed (+2 Ki) with SSJ4 Goku. He would also have less defense, and lower the total HP of your team.

As for the World Tournament... I'd say Super Gogeta as Leader, and the best PHY SSB Vegito you can find as friend (he does multiple attacks & counter attacks, very useful in the WT). SSJ3 Vegeta for the tanking, and also for the links with Gogeta and Vegito. Xeno Trunks for mass damage to all enemies (only after dokkan awakening), Piccolo for defense, STR SSJ Goten for the orb changing (the friend's leader skill doesn't activate in the World Tournament) and AGL SSJ Goku (Ki support).

It's not the best team, but it should be fine for the easiest difficulties.