Ingame, I would go for staraptor or togekiss. I would say that because togekiss can take and dish out hits well and staraptor can sweep pretty good, compared to the common ingame. They are pretty even to me.
Togekiss @ Leftovers
Ability: Serene Grace
Nature: Modest
-Air Slash
-Aura Sphere
-Thunder Wave
-Shadow Ball
Staraptor @ Doesn't matter ingame
Ability: Intimidate
Nature: Jolly
-Brave Bird
-Close Combat
-Return
-Roost
Pretty much the same competitively. Depends on role.
Togekiss @ Leftovers
Ability: Serene Grace
Nature: Modest
EVs: 252 Sp Atk/252 Spd/4 Def
-Same
-Same
-Same
-Same
Staraptor @ Choice Band/Life Orb
Ability: Reckless
Nature: Adamant/Jolly
EVs: 252 Atk/252 Spd/4 Def
-Same
-Same
-Double-Edge
-Pursuit/U-Turn/Quick Attack/Roost
Hope I helped :D