AWS and the others
I have been working on AWS for the past 9 years. I have multiple ceritifications in the field and I really enjoy working on that platform. When I try to use Azure or Google Cloud Computing, I have a hard time motivating myself to do work on the others. I know that I should because learning one or more cloud provider technologies is beneficial in the competitive world of IT. The more you know the better chance of they’ll hire you, but I just think that you’ll never be as good as someone who has dedicated all his time at work and his free time to do work on a single platform.