Rubberhead.
Selecting a macro lens always reduces to subject working distance versus price. I had produced this along time ago as a POTN sticky.
http://postit.rutgers.edu …cro%5FWork%5FDistance.pdf
If a person is only going to own one macro lens, most folks would offer the 100mm focal length macro offers the most versatility, a better one lens do-it-all choice.
Choice is also influenced on what else you own and carry regularly. E.g., a 17-55mm (or 18-55 stock lens), a 60mm macro, and a 70-200L make a superb 3 lens travel kit, covering everything except ultra wide angle (if wide angle is your thing).
The EF-S 60mm macro is among the world's best macro lenses, at any price. Slightly better (though imperceptible in most cases) image quality than the 100mm macro USM. The EF-S60mm is a portable, hand-holdable bargain. The aperture blades render nicely smooth out-of-focus highlights until about f/5/6. The color and contrast are distinctly rich, pure, and neutral like Kodachrome 64 transparency film of years gone by.
Unless/Until you need more working distance for insects, critters, or avoiding lens/photographer shadows on subjects, it is a fine chunk of glass for many years of service. The moment you need more working distance, you'll know it.
Jack