Yep, I think the best club sides are typically better than the best national sides. Bayern for instance have the best of the German side but with additions from Brazil, Holland, France etc. Barca have the best of the Spain side plus Messi, Neymar et al.
Spain and Germany are the strongest national sides, and I don't think either would win their national league (assuming players could play in both national and club side).
Spain and Germany are the strongest national sides, and I don't think either would win their national league (assuming players could play in both national and club side).