After going over the CAP and VooDoom, I feel this is the best pokemon to use with Zapdos, getting a great partner in the legendary... Either by a Baton Pass / Agility Bird or just your standard Roost-Dos...
Zuruzukin
-Dragon Dance
-Hi Jump Kick / Drain Punch
-Crunch
-Taunt / Toxic
@ Leftovers / Life Orb
Jolly Nature, 252 Speed, 174 Attack, 84 HP
with his amazing partner
Zapdos
-Thunderbolt
-Agility
-Baton Pass
-HP Flying / Heat Wave / Roost
@Leftovers, Timid, 252 HP, 80 SAtk, 176 Spd
or
Zapdos
-Heat Wave
-T-Bolt
-Roost
-U-Turn / Roar
@Left Overs / Life Orb, Timid, 252 SpAt, 80 HP, 176 Spd
The synergy between these 2 is unreal...