IMO it's enough that Bundesliga has 2 top team that compete heavily in the CL (Dortmund actually deserved to knock Real out, but never mind that). People always say how this season we were out of form in the CL. I think that's just another excuse fans use, as we were like the only team that was 'out of form' apparently. When we're not doing well there are always some excuses, but nobody faces the reality and sees one thing -- we choked in hell of a easy group.
I think Serie A is weaker than Bundesliga without a doubt because I think we could easily lose against both of those teams, and we're the ones that piss all over Serie A. Bayern has 9 points less than us with 3 games less played, which basically means we're superior in the league just as much as them. But if we'd to face them, they'd most likely destroy us, like they did not so long ago (rightfully so, they were the strongest team without a doubt). If we'd to see first from Italy play against first from Germany, I say we'd see more losses for the Italian side. Inter and Napoli might win against their teams, but Roma and us would also lose. With Milan you just never know, but in my books Serie A is a weaker league. Roma is strong and has surprised, but we'll see how they manage 2 (actually 3) competitions next season.
When you look league vs league I'd say Italian is stronger than France. But maybe for not much longer. PSG is on the road to become one hell of a team, that's for sure. We're seeing a Monaco that's basically on a similar road. But yea, other teams are quite weaker. I don't know for how much that counts.
Up until Atletico started doing great people were laughing at La Liga all the time and how it's actually weaker than Serie A. But seriously? Barca, Real and Atletico. That's pretty damn scary, and all of them are running for the title as well.