Is the GA R package the best Genetic Algorithm package? I am learning about Data Science and I love the Healthcare part. That's why I have started a blog and my third entry is about using Genetic Algorithm for solving NP-Problems. 
This post is https://datasciencecgp.wordpress.com/2015/01/31/the-amazing-genetic-algorithms/

I have some expertise with GA package solving problems like the TSP, but do you know any most powerful R package?

Thanks so much!
For such questions, I like to go to the Task Views on CRAN, since the packages noted there are, to a degree, pre-vetted by the R community. I'd trust those a tiny bit more than just googling myself.

The Machine Learning Task View at CRAN says:


  Packages rgp
  and
  rgenoud
  offer optimization routines based on genetic algorithms. The package
  Rmalschains
  implements memetic algorithms with local search chains, which are a
  special type of evolutionary algorithms, combining a steady state
  genetic algorithm with local search for real-valued parameter
  optimization.