Compared to what we actually needed at the given time, I think you can compare the two windows in terms of quality. Back then we sold Sanchez and badly needed a 9. We got the best out there. We needed a goalkeeper as well, and got two great ones. Then there was a void to fill after Xavi, and we did that too.
This season we hardly need direct starters, as our starting XI is pretty fantastic. We need replacements for the not too distant future, and we (potentially, because we can't know yet if they actually make the grade of course) did that the best way imaginable as I see it.
So yeah, I think the two windows have been solved just about equally well. In the end, time will tell, though.