In my opinion the Copa del Rey is also equally important to fight for, if you know the history of this competition and how difficult it is to win the trophy. Of course the match must be exciting compared to Real Sociedad vs Madrid. Although on paper Barcelona advantage is slightly higher than Atletico Madrid, Simeone is a fairly clever and slightly stubborn coach so it is not surprising if there is a little drama in this match.
Barcelona is a big favorite actually, their odds is @1.65, draw @4.33 and Atletico Madrid @4.50. Both of them are strong, Atletico Madrid past history is as good as Barcelona, but they're just underrated. Bet on draw or Atletico Madrid seems worth for the risk.
Simeone only good in making the opponents get angry because Atletico Madrid's players are really harsh and he like to use parking the bus strategy instead of attacking, hence draw is possible to happen.