I agree with you, though the funny thing is that I started this list more by chance, when I remembered that we tried to find the best films of the new decade on the old board, and wanted to bring the topic back in some form.
I love the Top Ten games, but as you say, listing Your Top Ten of a decade, even with follow-ups, is very limiting. 
Listing all the essential and great films is much more exhausting, and I think it will be fun seeing more obscure titles. On the other hand of course, if you have 100+ titles listed, the distinction between the best and the "worst" can't be made so easily. Your approach here covers some of both.