But if Toyotarou or someone else that's going to do the story in AT's stead goes ahead and says Vegetto and Gogeta are equal now, I'll use that as my headcanon for post-AT Super at least.
I'd put Vegetto above Gogeta tentatively. In the manga they never outright retconned Potara > Dance, only the part about the earrings being permanent. Plus there's a pretty big gap between regular SSJB and PSSJB as seen in Vegeta's sparring session with Beerus and the whole MZ fight in general...
Yeah the V-Jump has had a historically bad track record of errors ranging from typos to blatantly full retard information like Boo obtaining power equal to SSJ3 Goku by absorbing Gohan... who himself is many times above Goku. I don't really prefer either fusion (although I do like Vegetto's...
Piccolo stopped showing an SSJ-like aura after his fight with #17 while Imperfect Cell was still seen with it after the CG, so I think the intention was to portray him as a pseudo-SSJ. He just became able to tap into Grade 3 only in his Perfect Form.