Google is Rock. no one can beat. Using facebook only for entertainment & business. but Google not like that Google using for all. easily we can compare. "Google is world" Here facebook is very popular country that is all. seems like a USA. USA is very much popular and world economic no1 country. but its possible to buy all country. it's impossible? i hope this answer will help you///
I don't think so. Google will always be Google and Facebook will always be Facebook. Google is a lot more diversified compare to Facebook. Google will still be number 1 in 2020 that is just my opinion.