Take for example the top 7 from GKG's list: GKG,Chohan,Tirri,Shaister,Kirk,Rabican,Chickenwire. Would they be an all time great team? Absolutely, but would they be unbeatable? Not so much. There would be personality clash, ego wars and people not accepting their roles to make the team the best it could be.
There is only one rule when creating your super team, YOU MUST BE IN IT. If you think you are really good at this game and can't trust yourself as one of the best 7 players on any team then you aren't really good.
Post your own super team below if you'd like.
Asmo's Super team
Future TMNT 3

Team Breakdown: This would be the most versatile team ever assembled. Spots 1-6 can play any role at a top level other than Heavy Trowing (I consider this 3+ Trow, but there is never more than 1 of those needed on any map). Top level strategy, decision making & defined roles would make this team unbeatable in a 7 game series.
1) GKG - For this team he would be The captain, Primary Trower & control melee packs on non giant unit maps.
2) Eastwind - Secondary Trower, Fill any other role
3) Arzenic - Fill any role outside of trow
4) Shaister - Fill any role outside of trow
5) Dantski - Primary art on maps when necessary. Fill any role outside of trow
6) Asmdoian - Fill any role other than fetcher
7) Dac - Speciality roles when necessary (Ghol Packs, Spider Packs & so on) - Yes, I know people are going to question this pick because there is easily 100+ players better than Dac all-time if you are making an all-time great list. Guess what this isn't an all-time great list. It's the best hypothetical team and Dac has proven recently that he can fill in at that 6-7 player role as good or better than anyone else because he is willing to accept it and maximize it. Also the 6-7 role isn't old school "Thrall Duty". Any top captain will give all 7 of their players roles where they can make an impact on the game.
PS: Ska could have potentially had that #7 role, but he has never loved me enough to team with me so I can not FULLY TRUST.
Now that you've read this Congrats! You would be steam rolled by the best hypothetical team ever assembled.