So I actually think they both have their pros, cons and similarities/no difference.
To me, both have amazing theming, transportation, food
and after hours/holiday events. They also both have great and not so great CMs and TMs(but the not so great are very rare in my experience)
Disneys better at hotels (imho-for daily cleaning at universal RPR we were not impressed. Dust behind the bed, hallways never cleaned, bathroom sink not having proper water pressure, lobby chairs sticky, just all together not good) and explaining everything when you call customer service.
Universal is better at the express pass system and every being in close proximity (tho that will change with
epic universe).
Also, we have to remember everyone’s experiences are different. My friend is planning a big Florida trip and they have a great Discovery Cove/Sea World/Busch Gardens package. They are doing a day at Disney (due to having a ticket they need to use) and some time at Disney Springs. They aren’t going to universal period because the deals weren’t great. And the only reason they are doing Disney is because of that ticket they have to use (and they love Disney Springs). Everyone’s situation is different.
As for me, I remember in 2017 when everything was expanding and opening at all the parks. There was a hashtag on Twitter called #UnitedinLeisure celebrating all the great new things coming to the parks. I miss those days.