But that's my point. It doesn't matter who's better exactly right now. Let's see how this plays out over the next few years.
Whether one company or another is 10% better or worse than another at some metric right now -- that just couldn't be less relevant in terms of how this will ultimately end up.
Lotus 1-2-3 came out 4 years before Microsoft Excel. WordPerfect came out 4 years before Microsoft Word.
Hotmail launched 8 years before Gmail. Yahoo! Mail was 7 years before Gmail.
Heck, AltaVista launched 3 years before Google Search.
I don't think less than a year difference is meaningful at all in the big picture.