Sentinel Prime (Transformers Animated)

Sentinel Prime is a member of the Cybertron Elite Guard under the command of Ultra Magnus. Sentinel has a history of rivalry with Optimus Prime, who attended the Autobot Academy with him. In his academy days, he was somewhat of a maverick, leading the more responsible Optimus to refer to him as a "walking malfunction." Of course, he's the one that ended up on the Elite Guard while Optimus was sent off to repair space bridges, of which fact he's all too fond of reminding his former classmate... despite the fact that it was only because of Optimus who got the position. He also has a bit of a superiority complex toward non-guardsmen Autobots, not to mention that he's intensely organic-phobic.

Why He Sucks

 * 1) He is arrogant, cocky, vain, bossy, stubborn, impatient, short-tempered, narcissistic, sometimes idiotic, immature at times, very cruel, disrespectful, cold-hearted, mean-spirited, disobedient and down right unlikable and unsympathetic.
 * 2) He gets other Autobots into trouble by blaming them for his own actions. For example; After disregarding Ultra Magnus' orders of organic planets being off-limits, he dragged Optimus Prime and Elita-1 to the Archa Seven, an organic planet, in a search for a Decepticon warship filled with Energon cubes, and then after not being able to have time to rescue Elita, whom was then later turned into Blackarachnia, accused Optimus for leaving her behind, despite HIM being the cause of all of it, which made Optimus take the blame, causing him to be expelled from the Elite Guard.
 * 3) He is also a stern and strict instructor at Autobot camp. He spoke to Bumblebee and Bulkhead in a very rude and nasty tone.
 * 4) He finds himself superior to anyone else around him, and he also makes phony and obnoxious attempts to prove he's better than anyone else around him.
 * 5) He NEVER gets a proper punishment for his actions and attitude.
 * 6) He also STILL accuses Wasp for being the Decepticon spy, even after it was revealed that Shockwave was the real spy!
 * 7) He denies the fact that Blackarachnia is Elita-1, by calling her a freak and telling her she should've gone offline after she fell back into the ship.
 * 8) Why did he even become the new Magnus in the cancelled fourth season?

Redeeming Qualities

 * 1) He sometimes gets a taste of his own medicine by either Optimus calling him "Worthless crankshaft" and putting him into stasis cuffs, being stabbing by Blackarachnia, getting hit on the head by Bulkhead's wrecking ball or/and being crushed under a building also by Bulkhead.
 * 2) His voice actor, Townsend Coleman, was also the voice of The Tick from, well, The Tick, whom does a very impressive job.
 * 3) His designs and vehicle modes look nice.
 * 4) He has some nice moments whenever he isn't acting jerky.