Both are great for hobby projects, and offer pretty great bang for buck, but I'd never run consider running anything serious on either, let a lone a business.

Some examples:

== Not pay bills (yeah, yeah, I should check my email more often when a credit card expires) ===

* Digital Ocean: All is working, then one day they flip the switch and shut down your servers and delete the backups (that you paid for)

* AWS: Has a super reasonable policy, first by shutting down the servers so you know

* Linode: Not sure

== Get DDoSd ==

* Digital Ocean: 24 hour blackhole, zero support or human contact in this time

* AWS: Servers kept alive, got some engineering assistance

* Linode: 24 (?) hour blackhole, a bit of really bad support

== Physical Server Upgrades ==

* Digital Ocean: Not bad

* AWS: Amazing. Zero downtime, I have 4 year uptime on many servers

* Linode: Botched my servers, more times than I can count. Even had support reboot the WRONG servers of mine when I was talking with them

== Bandwidth ===

* Digital Ocean: shitty and cheap

* AWS: Amazing and stupidly expensive

* Linode: Decent and cheap

I could go on. If it was a hobby project, I'd probably just use Digital Ocean because of their cheap prices and sleek control panel. (Or actually I'd use vultr)

But for anything serious where I have a budget for servers, you'd be crazy to use anything about AWS or Google Cloud