The best replacement for cons is pros.

The best alternatives to cons are rated as following:
★★★★★  pros
★★★★★  cons
★★★  cops
★★★  cage
★★  libs
★  stem cell research
★  war in iraq
★  cons felony fights
★  abortion
★  append
  rods
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  genetic engineering
  electoral college
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  army pros and cons
  pros meaning

Your alternative for cons is not listed? Suggest!
Speaking about cons, one probably shouldn't forget about genetic engineering.

Other search terms related to cons and their ratings are:
★★★★★ genetic engineering
★ health care reform bill
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