For me, Google video search, Google books (Internet Archive is good, but doesn’t always have the same stuff), Adobe InDesign (but in the process of learning LaTeX), and Typewise. As for the Google stuff, I liked Whoogle a lot, but almost all their instances seem to have been blocked or shut down. Also, apologies if this is repeating an earlier post.
That’s only your opinion, not an objective truth, and I only partially agree with it. Having the most features is not as important as having just the right set of features, and there are anti-features to consider as well. Feature creep can actually impact the usability of a tool, so these two criteria are sometimes in contradiction.
Ease of use is subjective and depends on the user, because users’ needs, ability, tastes, and concerns differ. Of course, I don’t think anyone deliberately chooses a tool because it is hard to use.
I don’t agree that freeness is purely an ideological concern. I don’t think a tool that works against me, or imposes arbitrary restrictions on me is a good tool by any measure.