It looks to me like the major case where the benchmark straight-out lies (well, where you, the speaker, presumably lie about what it's saying) is that the first snippet is in list context, and the second is in void context. Simply adding my @results = before the initial (in lexical order; final in execution order) map would fix that, and still have it fit on your slide (assuming your slide uses a monospaced font). You could probably even write it on a sepperate line and still have it fit on the slide.
The rest of the changes make the benchmark more useful, perhaps, but they do not unfairly favor one over the other -- the most important type of error to avoid in any benchmark. (The reason, for example, that polls should rotate the options -- there's a significant bias amongst voters for the first option listed on a form.)
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