Twisted Treeline NEEDS Ten Bans
I don't care how it's done. Giving the last two players on each team two bans each seems fair to me, but you could give the first player three bans and the last two one each. This mode is in dire need of ten bans.
Six
bans
is
not
enough
when
the
meta
makes
normally
balanced
champs
an
absolute
nightmare 
Yes, I know not many people play this game mode... But it still has a ranked queue, and that ranked queue sees the above champions being played 90% of the time for one reason or another, whether it be how broken lifesteal / sustain / survivability is on this map (
,
), how small the lanes are (
,
,
), mobility (
), etc.
It's time for Twisted Treeline to get ten bans so there can be a bit more diversity in its games.