Thanks to all who've put in the effort to make this big list.
I've got some gripes with it though ...
I think any 2010s list without Modric is ridiculous. He's the essential part of the team that won 4 CLs in 5 years, a historic 2nd place at WC for Croatia, and a Ballon d'Or on top of that, things that none of the others managed to do in that timespan, I know you'll be saying but look who's already there... which brings up my second point:
Xavi and Iniesta had part 2000s (euro 08, treble 09, even WC 2010 is half and half, since it is after the 2009-10 season) and part 2010, so if we were really counting 2010s Modric would easily take the first spot. Still, even if going by player's careers, he'd at least be a better choice than Schweni.
You conveniently managed to cut Real Madrid's 97-2002 in half (which is 3 CLs in 5 years, but you omitted the first part and just counted the 2000-02 part and called it 2 CLs in 3 years, not only that, you just wrote like 2 lines about it and called it a day, you should've be more thorough to be consistent) but you -again conveniently- didn't cut Barca's 2008-11 into two halves, so it's not consistent with the rules you have already set in other places.
Also one minor mistake with the dates: Heynckes' treble winning side was 2012-13 not 2013-14, the latter is when Ancelotti won the double with Madrid, and probably should be added to that Madrid side for consistency's sake as you've already put some big timespans for certain teams like Juve 1980-86 or Pool 1980-88 although, naturally, there'll be many differences between the first side and the past one (this point is also related to Madrid 97-2002 instead of 2000-02).