In my experience of many years, not only is Keynote fantastic, but Pages is better than Word and Numbers is better than Excel (though not the extensive Excel ecosystem).
I discovered that Word doesn’t even support formulae in its tables, which came as a great surprise. Apparently I needed to do this in Excel, which of course meant that the whole document needed to be written as fixed-width cells. This totally sucked for my use case.
Word has some features that Pages doesn't have, but they're not commonly used, and if you're doing any kind of page layout, Pages is __much__ easier to work with than MS Word.
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Nothing is better than Excel.