“Best” all around axle ratio: ~450hp w/ A904?

I like 3:23 for all around cruising. I swapped to 3:55 in my 499" in GTS but will probably swap back to 3:23, Joe
Personally I would consider the 3.23 year to keep highway RPM down. 3.55 is pretty reasonable and is a quiet gear. This will also work well with an OD trans, especially if it has a lower first gear.
The mentioned 4.56 is a bit low for a street car even with OD. Real fun when you jab the loud pedal to the radiator though.