The higher the resolution, the better the separation.
References
^Purnell, J.H. (1960). "The correlation of separating power and efficiency of gas-chromatographic columns". J. Chem. Soc.: 1268–1274.
doi:
10.1039/JR9600001268.
^Skoog, D.A.; Holler, F.J.; Nieman, T.A. (1998). Principles of instrumental analysis. Belmont, CA: Brooks/Cole. p. 689.