CHARACTERS HISTORY (taken from Wikipedia):

Finnick Odair:
Finnick is 24 years old and described as being very handsome and tall with tan skin, bronze hair, and stunning sea-green eyes, making him very popular with people in the Capitol. He is known for having many lovers in the Capitol, none of whom he stays with for long. At age 14, he won his first Hunger Games by using a trident and a net against other tributes; District 4's trade is fishing. Katniss remarks that a trident given to him by a sponsor may have been the most expensive gift ever seen in the games. During the Quarter Quell, Katniss is hesitant to make Finnick her ally, because she does not trust him—he seems to her to be shallow, arrogant, and superficial—and does not want to become close to him and then have to kill him, but he proves to be a valuable and trustworthy ally, saving Peeta using CPR and using his district skills to provide shelter. When jabberjays that make sounds of the screams of loved ones being tortured appear in the Quell, the one made to target Finnick uses the voice of Annie Cresta, his "poor, mad" lover back home, who won her own Games a few years before, but went insane after seeing her district partner decapitated. In Mockingjay, Finnick enters a deep depression as a result of Annie's being held prisoner in the Capitol. He helps the rebellion by appearing in rebel propos and revealing the fact that victors are routinely prostituted to wealthy citizens of the Capitol by President Snow, which is why he was seen as having a string of lovers. He then reveals all of the political secrets he learned from clients, including that President Snow owes his position to having poisoned his opponents. He is reunited with Annie (when District 13 retrieves her, Johanna, and Peeta from the Capitol), and they get married. Finnick is a member of the "Star Squad" that goes to fight in the Capitol during the final stages of the rebellion. He is decapitated by lizard muttations during the attempt to infiltrate the Capitol. Some months after his death, Annie has their son. Finnick is characterized as being personable and down-to earth, with a quirky sense of humor. After an initial period of distrust, he and Katniss become good friends.

Cinna:
Katniss's stylist, responsible for her public appearance. After designing the spectacular outfits of the opening ceremony, which include igniting Katniss and Peeta's costumes with synthetic fire, he nicknames Katniss, "the girl on fire." Cinna is in his first year as a stylist for the Games, and specifically requested to be assigned to District 12. His audacious designs immediately win over the audience in favor of the District 12 tributes. Despite (or perhaps because of) his professional interest in image, Cinna proves to be better than most at seeing through the superficial spectacle of the Games to their barbaric core, "using [her] outfits as a vehicle to express potentially dangerous ideas." He and Katniss establish an easy, comfortable relationship and he demonstrates a genuine concern for her well-being. In Catching Fire, Cinna dresses her for her interview in her wedding dress, as insisted by President Snow, but alters it so that when Katniss raises her arms and twirls at her interview, the white dress burns away to be replaced with a black dress of feathers that resembles a mockingjay, which has become the symbol of the resistance in Panem. Because of this, Cinna is savagely beaten "to a pulp" in front of Katniss, right before she enters the arena for the Quarter Quell, which also has the effect of unnerving Katniss before the great ordeal. We hear that he might have been tortured to death after the arena explodes. Cinna is very different from the other inhabitants of the Capitol; he does not use surgery to alter his features, wears simple black clothes, has just a thin streak of gold eyeliner (unlike other Capitol citizens), and leaves his hair its natural dark brown color, close cropped. His only concession to the Capitol's fashion style is a slight touch of gold eyeliner that brings out the gold flecks in his eyes.

Ugh, that was a hard choice! They are both incredible characters :)

Love them both though. <3

Hard decision. They're two of my favorite characters. :)

Finnick is my fave :))

They are my 2 favourites, but Finnick's the best :)