To be brutally honest, I think a lot of people find Ian Somerhalder (who played Damon) more attractive than Paul Wesley (who played Stefan).
Ian Somerhalder (21M Followers)
The bad boy turned good by love was played by Ian Somerhalder and audiences appreciated his good looks as much as his epic character development over the years.
Not only did Caroline gain control of her blood lust quickly, but her character development only got better after her transition into a vampire. Of all the vampires in The Vampire Diaries, Caroline Forbes was the best of the bunch.
Katherine is a great villain but a terrible person. Elena was far more compassionate throughout the series, showing genuine love for her friends and demonstrating that she cared about people much more than her evil doppelganger. Several characters compliment Elena's capacity for compassion in The Vampire Diaries.
Caroline is actually Stronger, but Elena was trained to kill vampires as a human. They both fought when Elena had her humanity off and she almost killed Caroline.
Stefan Salvatore
Stefan loved Elena more than anyone else and was entirely devoted to her.
Stefan Salvatore was the most selfless character on The Vampire Diaries.
Caroline Forbes had a crush on Stefan ever since the pilot, and although they both dated other people, it was obvious that she never stopped liking him.
Damon Salvatore, the elder brother is loved for his sexy looks, his humor and the adventurous vibe around him. He is loved when he acts like he doesn't care for his brother but ends up saving him every time. His love for Elena and how he acts selfless when it is about her makes him more charming.
Klaus, as an original vampire and a hybrid, is much older and more powerful than Damon. Klaus sired many vampires, and he is Damon's vampire ancestor. Klaus' power is proven when Damon is bitten, and his hybrid blood saves Damon.
Over a hundred years after his creator was laid to rest, Dracula lives on as the most famous vampire in history. But this Transylvanian noble – neither the first fictional vampire, nor the most popular of his time – may have remained buried in obscurity if not for a twist of fate.
The dirge is easily the rarest form of vampiric creature and indeed may be the least-documented undead being known to exist.
Katerina Petrova, better known as Katherine Pierce, is a Petrova doppelgänger and the main antagonist of The Vampire Diaries.
Stefan encourages her recovery from the traumatic event and gives Elena a new appreciation for life. Elena later credits Stefan for helping her through her depressive period. Stefan ultimately did more good for Elena than Damon did by encouraging her happiness instead of causing her misery.
Klaus. Klaus was quickly established as the most fearsome vampire when he was introduced in TVD.
Damon loved Elena more than he ever loved Katherine. He was willing to give everything up to spend a normal human life with her. They defeated every odd when the universe seemed to be against them.
Like all vampires, Elena has the average abilities such as super speed, immortality, super strength, instant healing, heightened senses, compulsion, etc. But, due to the fact that she has only just completed the transition, she is still fairly weak in each and every ability she has.
DELENA: More Passion and Danger
While Stefan offered Elena a sense of safety and stability, Damon gave her danger and passion. He allowed Elena the freedom to explore who she was regardless of morality. He sparked a passion in her that let her get in touch with her inner bad girl.
Elena and Bonnie were originally best friends, while Caroline was closer to Bonnie, mainly due to being jealous of Elena. After Caroline's transformation into a vampire, her friendship with Bonnie deteriorated for a short time, but Elena was there for her, strengthening their friendship.
There's even a moment where Caroline tells Elena, "I'm Matt's Elena backup. I'm your Bonnie backup." Caroline's insecurities lead her to feel a great deal of jealousy toward Elena, thinking she's everyone's second choice.