33rpm vs 45rpm - which is better

78's they have been around longer. 

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

I don't know why the 45rpm is not on multiple discs like so many other vinyl reissues of late. Cost, I guess?🤔

My vote goes to 45RPM.  Almost all of my best recordings are on 12" 45RPM discs.

The streaming version!