Circumferences:
28 mm: 87.96 mm
45 mm: 141.37 mm
60 mm: 188.50 mm
The smaller the diameter of the blade, the more often it has to rotate to cover a certain distance.
I think whatever is the most comfortable and easiest to maneuver is the one to use.
I tend to use whichever one I find first.
THEN - after I find they are all dull, I finally change the blades.
I have gotten "bad" Olfa blades right out of the package - it would not cut one or two threads -