None of these games will share routes, as they are not hosted in the same cities or buildings. So making this comparison isn’t helpful to the diagnosing the situation.
There are no known issues at this time with the servers, and lots of people (like me) are online playing without 2-3 disconnections a day. I’m not sure why I see this type of post so often where it’s assumed that Blizzard isn’t constantly monitoring their connections for issues or spending tons of money on the servers – because they are doing those things.
All that being said, this is the troubleshooting forum and all we can do here is troubleshoot your connection, not field commentary or feedback. If you want to troubleshoot, please add your networking tests so someone can help.