Wall for Syl ™ (page 117)

Also, I played Through Ultra Moon with all 3 Alola starters and the same Team and found it Drastically easier to get through some Tough areas Like Guzma Fights with Decidueye compared to all the others. The only advantage Incineroar had was The ghost Trial; It also has a pretty bad typing for the elite four. I think your Incineroar is the easiest starter to beet Sun/Moon/USun/UMoon with is bias. It is more of the middle man, so it is not the worst (Primarina gets owned by physical attacks).

Hope I made no offensene :P

Also, it is best to disregard competitive and viability when considering favorite Pokemon, it just makes you not care for them :P