I never played WOW or ESO but my friends who joined to FFXIV try it for free left before reaching 30 level. I don't know the difference between WOW / ESO / FFXIV but something with FFXIV wrong apparently
I am guessing slow progressing story and unappealing early jobs with limited skill set with 1 button spam.
But I can't make true comparison because I don't know anything about WOW or ESO. I will try their game when I have spare time and money.