What does the word "most" mean? - English Language & Usage Stack Exchange
A thing I have never had the time to look more closely into. But I find both variants: What I love most is ... or What I love the most is ... I think the more common form is 'the most', and I ...
Compare to: "What bed do you spend most of the time (sleeping) in?" or "What shoes do you wear most of the time?" These are questions that most people could answer. Another way to look at it: "What TV show do you spend most of the time watching?" is a loaded question. It already implies that I spend most of my time watching TV.