Besides Empoleon who I will play as my obligatory starter, who should helm the remaining 5 slots from these?

Empoleon - Water/Steel
Crobat - Poison/Flying
Gengar - Ghost/Poison
Garchomp - Dragon/Ground
Drapion - Poison/Dark
Abomasnow - Grass/Ice
Gliscor - Ground/Flying
Gallade - Psychic/Fight
Houndoom - Dark/Fire
Rhydon - Ground/Rock
Rhyperior - Ground/Rock
Scyther - Bug/Flying
Scizor - Bug/Steel
Magmortar - Fire