AJ, Mayor Mare, Spoiled Rich, Cup Cake, Derpy, Cream Heart, Flitter, and… Fluffle Puff. Maybe also throw in Altus Bastion or Sequoia if you really, really want a giantess in the mix.
EDIT: Let’s make it STV, with 5 reps needed and 20 running. Here are the absolute values I used:
Mayor Mare- 538466
Applejack- 300000
Cup Cake- 83666
Spoiled Rich- 73
Derpy- 834864
Cream Heart- 300000
Flitter- 15357
Fluffle Puff- 741923
Altus Bastion- 872
Sequoia- 825
Ipomoea- 9001
Sandbar- 9999
Blackjack- 71519
Plaid Stripes- 19800
Nyx- 7777
Snowdrop (SFS)- 5555
Snowdrop (MutatingRaven)- 8888
Sunny Starscout- 65535
Puppysmiles- 6666
Flurry Heart- 4444
And the percentages that these vales give in an Excel pie chart:
Mayor Mare- 18
Applejack- 10
Cup Cake- 3
Spoiled Rich- 0
Derpy- 28
Cream Heart- 10
Flitter- 1
Fluffle Puff- 25
Altus Bastion- 0
Sequoia- 0
Ipomoea- 0
Sandbar- 0
Blackjack- 2
Plaid Stripes- 1
Nyx- 0
Snowdrop (SFS)- 0
Snowdrop (MutatingRaven)- 0
Sunny Starscout- 2
Puppysmiles- 0
Flurry Heart- 0
The winners are Mayor Mare, Applejack, Derpy, Fluffle Puff, and Cream Heart.
Half of Flitter’s voters only like Flitter (They’re PegaNazis)