I was currently changing from using yaourt to use pacaur, after reading about and some issues i get with yaourt…
If you compare the table it is:
aurutils, bauerbill, pacaur and trizen…
But as pacaur is working with pamac the same like yaourt … i would ask here what do you think about the disussion… ???
yaourt seems not to be the most secure (on security) and not the most secure on the AUR build process:
yaourt vs. makepkg https://lists.archlinux.org/pipermail/aur-general/2015-August/031314.html