I'd do
1. Puck (Eugene Judd) as de facto leader
2. Deadpool second in command. Three words. Canadian. Badass. Chimichangas! Seriously though I think Eugene and Wade would bounce off each other extremely well both in comedy, action, and serious moments.
3. Copycat (initially posing as Aurora or possibly a character she invented for the sole purpose of being recruited into Alpha Flight. Since she was revealed to be back alive during Daniel Weys run, nothing has happened with her since. It also be interesting to see how she and Deadpool interact working as a team for a chance.
4. The Son of Major Mapleleaf Jr. and Puck (Zuzha Yu) major maple leaf the third inadvertently aged to a teenager due some mishap. Gung ho youngster out to avenge his parents deaths.
5. Alice Hu ( that reporter from the Unity story line that wore the groundhog armor)