Bart Simpson (seasons 16-30)

Bartholomew JoJo Simpson, nicknamed Bart is the tritagonist of the long-running American sitcom, The Simpsons. He is the mischievous and rebellious eldest child of Homer and Marge Simpson, and the older brother of Lisa and Maggie. Sadly, he got flanderized during Seasons 16-30.

Bad Qualities

 * 1) He has gotten flanderized from a mischievous and rebellious, yet likable kid into a malicious sociopath who takes delight in causing trouble for others.
 * 2) *He has also lost a lot of the charm and likability he had in the first ten seasons, though it varies whether he's in character or not in Seasons 11-15.
 * 3) He can get extremely selfish, similarly to Mr. Krabs.
 * 4) He terrorizes Seymour Skinner and Edna Krabappel on many occasions.
 * 5) While he got his comeuppance, he intentionally exposed himself naked to the public in The Simpsons Movie.
 * 6) There are a few episodes where he is at his absolute worst, like "Love is a Many Strangled Thing".
 * 7) Even when he isn't being unlikable, he can be treated like a massive butt-monkey at times, such as in "On a Clear Day I Can't See My Sister", "The Boys of Bummer" and especially "Bart vs. Itchy & Scratchy".
 * 8) *Speaking of "The Boys of Bummer", his character was basically nothing more than just a punching bag in the episode, in fact, he was bullied so much that he even attempted to commit suicide in that episode.

Good Qualities

 * 1) He was a much better character in Seasons 1-15 and has redeemed himself since Season 31.
 * 2) He does get his comeuppances after his antics go way too far.
 * 3) Similar to his dad, there are still episodes where he is at his best.
 * 4) His catchphrases, including "Don't have a cow man!" and "Eat my shorts!" are still funny and memorable.
 * 5) Depending on your view, he, along with Homer, is still memorable and/or likable.