CPU superstar of patch 1.10 easier than 1.07,
I use Arsenal always win Real,Barca
That's a problem with the game and have been for a while really, not only PES2014. Certain teams aren't as good as they should be and in the case of Barcelona and Real Madrid there are several particular issues that makes them really easy to beat with nearly any opposition.
1. My players are generally extremely motivated against these teams
2. Their strategies are very offensive and extremely weak towards midfield pressure and counter attacks.
3. They aren't creating tactical free kicks to stop my best breaks.
4. The AI doesn't fully take advantage of the technical advantage they have against most human opponents.
I usually fix this issue by bumping up form by 1 for most/all players in these teams. I increase Tenacity by around 5 points to make them resilient and have better work ethics. I change their team formation and strategy slightly and make them more eager to defend a lead at the cost of realism since they don't really play like in real life no matter what you do. I try to find a middle way between real life and what's actually effective in the game but I haven't found a definite solution just yet. AI teams seems to be more effective when using a 4-5-1 formation, so for Barcelona I push the wide SS down slightly as wings which also makes sure the central SS spot is where Messi is positioned. The attacking formation (3) is nearly identical to the default one with 3 SS. I'm having a harder time breaking them down now at least, and they score more against me.
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From one thing to another. First I want to credit Konami with a fantastic patch. In fact I think the last two patches has improved the game immensely and especially the last one. Well done. What I don't understand is how they needed so many patches to tweak the game into what it should've been on release or at least very soon after.
Aside from an oddity here and there, which I can live with, there's still the remaining issue of keepers being extremely weak against near post shots from near dead angle. Any player with 80 or more Finishing is easily able to sneak the ball in consistently from this angle and it's stupid. Especially annoying that this is the main channel for AI goals. I want the defender catch up toned even more down which will make the AI more dangerous when clear on goal and I want the AI to be even better at taking out depth when unable to pressure ball carrier to make up for decreased defender catch up. This has to be a strategy based on the pace level of the defense in comparison to the speed of attacking team, like in real life.
After the latest patch, despite some flaws, there is no doubt that this is the pinnacle of football games so far. It might not be as good or flawless as expected a few years ago but it's not far off. I am very positive for the next iteration and I will be extremely disappointed if it turns out to be a console only release.