We've had the best bussing at CSR. DD and I stayed there a few years ago and never waited more than 10 minutes for a bus, going to or coming from the parks, and I don't think either of us ever stood at any time. But we've only stayed CSR once. We will be staying again in a month so hopefully it's still good.
We usually stay POR and as long as you avoid the South Depot, it's not bad. We made the mistake once of trying to get on an Epcot bus during F&W at the SD. The line stretched almost to the gift shop doors, and people were angry. Especially when an Epcot bus pulled up, opened its doors, closed its doors, and left without picking anyone up. There was a CM at the bus stop and this guy got in his face saying it was BS blah blah blah. He just stood there and let him scream. Luckily someone pulled the guy away. I think we ended up walking over to the West Depot with no one else waiting and never used the South Depot in the morning ever again.