I have both DO and Hetzner VMs and I find them comparable, with Hetzner being a bit cheaper. If I look at the logs and fail2ban, it looks like DO does a bit more abusive traffic filtering, but that is basically the only difference.
However, the DO docs are on a different level and high quality. But those are also accessible if you are not a customer.
However, the DO docs are on a different level and high quality. But those are also accessible if you are not a customer.