Whoever wins it, would deserve it. Unlike cup competitions, I don't think luck can play a big part in a league campaign, because unless you're consistent in obtaining results, you won't be there or thereabouts to benefit from luck.
I always thought it was sensationalist when media and fans alike described this period Barca is going through as a "crisis", I would agree that they are on a steady downhill slope for 2-3 years now, but while they are not as good as they were 2-3 years ago, they're still one of the top teams in Europe. I mean they reached the Copa final, and only lost to a goal in the final few minutes by a Real Madrid team that is world class. They've always been close to the top in the Liga, and they went out of the CL losing to a very effective team that also beat Mourinho's Chelsea en route to the final. Granted, lots of Barca wins have been unconvincing, and many of them have been won only due to individual brilliance sometimes from an Iniesta, Messi or Neymar, but can anyone deny that they're one of the top 5 teams in Europe easily this season?