The data in your link is for 2016. It's the end of 2017 now. Alibaba Cloud is growing definitely much faster than Microsoft (126% vs 61%) and Google and bigger than Google. It is very close to Microsoft in terms of revenue if not bigger right now.
Would you have that data then? Also note that neither Google nor Microsoft break out their cloud computing revenues, making comparisons difficult, although you can figure out upper bounds by the nearest business unit.
Right, but MS was more than 2x the size at the end of last year, so Alibaba would need to continue that >100% growth, and MS would need to not grow at all. I doubt that's the case.