3.23 or 3.55?

Guess it depends on how much RPM you want to spin at when your doing your normal cruising around...I liked the 3.55 in my RoadRunner but for mostly crusing dont like anything over that..right now I think my Dart Sport has the 3.21 rear gears nice for cruising..IF I was gonna go for a few runs at the strip id go 3.55