Houndoom - Fire or Dark?

I have the same moveset w/ much lower IVs around 80 at level 30 and it's a beast vs. Exeggutor.

Fire is just a weaker arcanine, dark is a very good dark offensive poke.

It's fine. Better than none :)

All fine, just against Exeggutor.

It's not the best Fire attacker, but nevertheless an amazing one against Exeggutor thanks to the resistance to Psychic moves. Overall, I'd prefer the Dark moveset because it's more unique, but in terms of raw damage both options are equally great.

First, didn't know any mons can learn Forplay haha.
Second, I like my Snarl/Fire Blast for Exeggs but I like mixing movesets. That's the only Houndoom I have.