I am Catalan and all my friends support Barcelona. Even thought they know it's gonna be a tough challenge for them (especially away in OT), they are already talking about how difficult will be to face Liverpool, etc.. Let's be honest, they have all the odds to go through.
And do not forget they have 2 amazing defenders, which are Pique & Jordi Alba (this last one he's in an amazing form and he's providing loads of assist for them). Then in Midfield you have Rakitic, a proven player, Arthur (playing superb all this season), and in front I don't even need to mention. They have Jesus D10s (Messi), Dembo & Suarez.
Will be a really tough challenge for us.