This is after participation points only:

1st: House Qel-Droma (5.5 points)
2nd: House Ektrosis (4 points)
3rd: House Acclivis Draco (3.5 points)
4th: House Aleema (2.5 points)
5th: House Marka Ragnos (2 points)

Not a great deal separates the Houses at the current time, so there's everything still to play for!