Character: Pit
Cons
Just about all his attacks are very close range and do little damage.
Pros
Difficult to suffer from falling death as he has wings.
Arrow from Pit's bow attack is controllable before fire by changing angle of bow.
Arrow from Pit's bow attack is controllable after fire by arcing the arrow up or down.
Easy to string quick attacks into a series of combos.
Character: Wario
Cons
Awkward movement and attack style
Difficult to string attacks into combos
Pros
Can run over opponents with motocycle
Character: Ike
Cons
Slow attack style
Short range
Pros
Attacks deal large amounts of damage
Attacks have a large area of effect
Character: Pokemon Trainer
Cons
Bulbasaur sucks
Easy to fall off edge with squirtle
Pros
Switching pokemon allows for quick adaption in the heat of battle