I grew up with the 70's and 80's teams all experiencing some level of success - Phillies 76-83, 76ers 77-83, Flyers 74-87, Eagles 78-81.
It was an arid desert for most of the 80's (after 1983) and 90's (outside of 1993 & 1997), but the 2000's were better with Eagles & Flyers doing well, 76ers getting to the Finals in 2001 and Phillies starting to come on as the decade went on.
Since 2008, the Phillies flamed out until 2022, 76ers have largely been nowhere and Flyers have one Finals appearance in 2010 and then a dry run bordering on 15+ years now. Eagles and Phillies carrying the torch now with hopes of the Flyers relevancy in 2-3 years. I've given up on the 76ers.