Oooooooh the Vath....... indeed, their sidequests weren't that much different from those of the furballs's. BUT the amount they had was significantly less, or so I seem to remember - I wasted much less time with them for sure.
However, that one quest with the freed up Gnath after killing Ravana... in the deepest pit of Gnath hell... "oh hey i'm free, what should i do?" - go talk to vath: "well how about sending the new guy here?" - go back to free gnath... gee, really? And after that: "did the new guy get here?" - "well no, he might be lost, go look for him" - oh there he is, ok, i point him in the right direction - "is he here yet?" - "no, he isn't, go find him" - "well the gnath are calling, i have to go back to the gnath!" - /facepalm ...just UGH.