As an Android developer I can say that a good chunk of Android-related talks on Google I/O is just not interesting to me, like those about Wear OS, Android Auto, machine learning etc. I don't use them professionally, and it's unlikely that I will in the near future, they're just not that popular (who owns a Wear OS watch?). Other than that there are lots of simple tutorial-like presentations, so it's much faster to just read relevant article/documentation instead of watching a video. The rest talk either talk about stuff that's already been announced _or_ preview-alpha-01-unstable libraries that won't get stable for another year or so. Just feels like a waste of time.
I'd guess WWDC is more exciting because the stuff presented is instantly relevant in the ecosystem, as majority (?) of the iPhone users will get an update and will benefit from the new APIs etc.
I'd guess WWDC is more exciting because the stuff presented is instantly relevant in the ecosystem, as majority (?) of the iPhone users will get an update and will benefit from the new APIs etc.