45 rpm without any debate. The faster the record spins, the longer the groove length per unit (note, whatever) and therefore the greater the resolution. Period.
33 rpm is simply a trade off between fidelity and long playing. Note the 33 1/3, whcih replaced 45s and 78 is called the "LP". not the "good quality".
Same with tape where 15 ips >> 7 1/2 ips >> 3 3/4 ips >> cassette
Basic physics. and a rule int he record industry.
That said it will take more sides to achieve the same number of songs.
The Tidal version is excellent. Far simpler :-0