I'd forgotten how ugly the Superbird really was ...

Superbirds looked better than Daytonas IMO also.
I kinda prefer the Daytonas.
Neither one was designed for it's looks, just for no holds barred "go fast"- styling be damned.
They probably considered style a bit more with the Superbird, but not to a huge degree.
Daytona looked a bit more utilitarian, and I like that. It also wind tunnelled much better than the 'bird... but it was good enough for Petty, and that meant it was good enough for Plymouth.
Build quality was horrendous on both of them, even for Chrysler- but they were just built for homologation, not to set sales records. That's why they sat on dealer lots for years in some cases before they got sold.