Zoysia or St. Aug

Other than cutting, edging, and weedeating -- and watering, that's about the extent of my knowledge when it comes to sod/grass. I'll spinkler some fertlizer every once in a while, but I honestly don't know the difference between fertiizers -- and could be causing more harm than good with my existing yard. Right now, I have a mixture of Centipede (about 80 %) and the rest is Zoysia.

I know that I don't want Bermuda or Centipede. Which of the two in the subject line are best against weeds -- and is easier to maintain? Any of them more resistant to dog urine and shite?

Note, this is for Ascension Parish --- new construction. Sod will be laid in the winter, if that matters.