Phineas and Ferb

Phineas Flynn and Ferb Fletcher are young boys from the Flynn-Fletcher family and the titular characters from Disney series Phineas and Ferb.

Overall

 * 1) They are known for being the most iconic Disney Channel/XD duo to exist.
 * 2) Their inventions are so amazing and creative.
 * 3) They will do anything to make this the best summer ever.
 * 4) Their designs are passable.
 * 5) They have awesome singing voices.
 * 6) They do perfect chemistry with their sister, Candace and their pet platypus, Perry.

Phineas

 * 1) He is very optimistic and constantly looks on the bright side of things.
 * 2) He is very creative, imaginative and open-minded, believing that the world has infinite possibilities.
 * 3) Manages to raise the mood of any depressing moment.
 * 4) He is very intelligent and he is genuinely a good thinker, and this is proven by his many inventions, such as when him, Ferb and Baljeet all made the portal to Mars.
 * 5) He remains calm in any situation and is very slow to anger.
 * 6) He has genuine care for anyone around him and is not shown to retaliate or seek revenge for anything.
 * 7) He has dignity and is not afraid to yell when he needs to, such as when Candace refused to co-operate in a critical situation in "Phineas and Ferb Summer Belongs To You!"

Ferb

 * 1) He speaks in the third person, which proves that action matters more to him than just words, and it works very well.
 * 2) He has great lines of dialogue, aside from usually being a silent boy.
 * 3) He comforts people who feel anything but happy, namely Isabella.
 * 4) He is always calm, no matter what.

Overall

 * 1) Questionable character design choices. Even the show they originate from what makes fun of them for it.

Phineas

 * 1) Sometimes oblivious to emotions, such as Isabella's giant crush on him.
 * 2) Sometimes too optimistic in dangerous situations, such as Candace's constant and obvious methods of busting him.
 * 3) He may yell in a situation where he needs to show more compassion. For example, at first it seems like he did not want to understand why Perry kept the agency a secret from him.

Ferb

 * 1) In the Phineas and Ferb: Star Wars crossover special, Darth Ferb's plan is to turn his brother to the dark side was a bit overdone in the Star Wars universe, like Vader with Luke, or Kylo Ren with Rey.