Have it on the DBL page so only registered, logged in players can vote.
Separate players into 5 positions (keeper, sweeper, def/mid att/mid, striker) and have a different pole for each position. With each person having 2 votes for each category (10 votes total).
The players in each position are decided by asking the team admins to submit a list of 5 players who they consider to be their strongest line-up from players that play/played for them that season.
It should only be done for Div1 to prevent the polls getting too big. I know this will make it inaccurate cos some of the best players in the game play in lower divisions but I think it’s the best way.
The “all star game” will consist of the league champions (cY13

(so if there are any allstars from the league champions the guy with 2nd most votes plays foe the AS team)