Team Captain - Mavis Vermillion (fairy tail)
First guild master of fairy tail Mavis is a master tactician, able to calculate hundreds of possible out comes of each strategy and able to calculate the best strategy to ensure victory although her own magical power is unknown.
First Draft Pick - Ichigo Kurosaki (Bleach)
Ichigo is an obvious choice he is a master sword fighter and has made impossible feats seem easy, he has three solid forms (That I know of) Each more powerful then the last including Bankaii and Hollow Ichigo engaging Ichigo in a fight is the worst and last mistake you will ever make
Second Draft Pick - Son Goku (Dragon Ball Z)
Hardly needing an explanation my second choice is the Super Saiyan Son Goku from Dragon Ball Z, Goku is one of the most well known anime characters out there and everyone knows he's one of the strongest fictional characters ever thought of, he can withstand even the most powerful of hits and defeat the most powerful of foes, you better watch out because this is the face that's going to ruin your day if you piss him off!
Third Draft Pick - Naruro Uzamaki (Naruto Shippuden)
Just like Goku, Naruto is a very well known bad ass! He's faster then your average ninja and way tougher. Naruto can shadow jitsu clones of himself for some amazing combos and defeat opponents that should be un-killable, being infused with the soul of the nine tailed demon fox has a baby Naruto Uzamaki could have murdered your entire family at age 4 if triggered so watch out bad guys!
I'd say give these characters about a week before the fight to ensure they all become close friends making them 10000000x stronger when fighting together