The starter Pokemon tend to vary greatly in competitive viability, ranging from ban-worthy (Blaziken) all the way down to "why the psyduck would you use this?" (Typholsion), and everything in between. But what about the latest batch, the Sun/Moon starters?
They have some interesting typings, and some good looking stuff in their movepools:
http://bulbapedia.bulbagarden.net/wiki/Decidueye_(Pok%C3%A9mon)#Learnset
http://bulbapedia.bulbagarden.net/wiki/Incineroar_(Pok%C3%A9mon)#Learnset
http://bulbapedia.bulbagarden.net/wiki/Primarina_(Pok%C3%A9mon)#Learnset
....but at the same time have slightly disappointing stat spreads. 530 BST is not terrible, but they all have low Speed and no hugely outstanding values besides Primarina's base 126 Sp.Attack.
On another note, when their Hidden Abilities are released, that may be worth looking at, as Incineroar gets Intimidate and Primarina gets a new one called Liquid Voice, basically a Water type Pixilate.
It's still early in the meta, but are they/will they be worth using? What are people doing with them right now?