My thoughts:

1. Google has (is) the biggest computer program = 3 bln lines of code

2. Google has world biggest database, including Youtube, 23andme, Gmail, Google books, all internet content

3. Google is the world biggest computer, which includes something like 1 per cent of total world computing power

4. Google did most impressive AI demonstartion recently that is win in Go.

5. Google is clearly interested in creating AI.

6. Google has AI safety protocol.

7. Google has money to buy needed parts, including people.

So it looks like Google is in winning position. How may be its main competitors? Military AIs in NSA. Other large companies.