100% IV Exeggutor doubt.

I have a 100% IV Exeggutor with Zen Headbutt / Confusion, is he worth invest in since I already have an 89% IV Exeggutor with Zean Headbutt / Solar Beam?

(I do look for a Exeggutor with good IV + defensive optimal moveset Confusion / Psychic)

I really want a opinion on this cause I am really thinking about just living him like this.