While I am not planning on rewatching a bunch of stuff like some members of the forum, I was trying to put together a Top-100 of the 2010s and ended up with about 50 films from 2010 that made the initial cut. This is why I tend to not do lists...it becomes overwhelming. I've seen close to 2000 qualifying films for the decade and 6000 overall.
I make it harder on myself because the reason there were 50 films is because while I recognized that probably no more than 15 were really top-100 contenders, there were so many things I liked that are greatly underseen.