a) misleading ? irrelevant? lol?. They are stats, that are the truth and everyone have seen that this season Villa scores as soon as he gets a small chance to do so. Plus, I was comparing a striker vs another striker. You, in other hand, come with some random crap comparing a goalkeeper vs midfielder... lol.
Okay, so I suspect you're like 12-14 years old, but there is such a thing as a margin of error in a statistical sample. The more data points you get on something, the higher the chance is that the data you have is actually statistically accurate. You are unstoppably touting Villa scoring 5 goals in 8 shots. That is SUCH a small sample size that the margin for error is exceptionally high. It essentially tells us nothing. To put this differently, I think virtually any striker in the world could score 5 goals with 8 shots at some point. Let's take your argument to the extreme. Let's say Villa had one shot and one goal. Would you think it was significant that he had scored 100% of his attempts? I doubt it. And what you are saying now is very very similar.
Let me give you a bigger sample on David Villa.
In 2010-2011, his one full season at Barca so far, Villa shot 133 shots in La Liga. He only scored 18 of them. That is 13.5%. He had 35 shots in 2011-2012, and only scored 5 goals. That's 14.3%. In his last season with Valencia, he scored 21 goals in 139 shots, which is 15.1%.
Now, let's add in his 5 goals in 8 shots this season. That means that Villa has scored 49 goals in his last 315 shots in La Liga. That's 15.6%.
315 shots is a way more statistically significant sample size than 8 shots, and is certainly closer to his true goal rate.
On the other hand, during those same years, Messi has 132 goals in 578 shots, which is 22.8%. That is a WAY better rate than Villa's. And Messi is quite clearly becoming a better goalscorer over time. During this season and last season, Messi has scored 67 goals in 265 shots, which is 25.2%. Villa is nowhere close to him. If Messi had only scored at Villa's 15.6% rate last season, he would have gotten only 31 goals instead of 50.
The numbers are a bit less stark when you take into account that Messi's goal rate is aided a bit by taking penalties, but he is still very significantly more accurate than Villa when you use anything but a laughable sample size.
e) Last season Pedro was pretty much injured the whole season. Villa - as Pep said himself, was having problems already on his leg, but since he kept playing it ended up in a big injury. As you said, they were both "off form", so it makes sense not to trust them when they are playing bad. However, are they off form now? are they playing bad? last time I check they were playing pretty good. Oh right, Last time I checked it was a Spain match, with Barca however they suddenly become "bad" because they can't score.
I think it bears pointing out that Villa was injured/off-form, Pedro was off-form, and Alexis is not a goalscorer, and Barcelona still scored BY FAR the most goals in a season it has ever scored. Maybe using Messi as a sole focal point isn't so bad for the offense? It yielded 19 more goals than the season before when the offense was more balanced and the strikers were more on form. You wouldn't expect that to happen unless it is just a superior tactic to do that.