I have both Gorm and Wilbur maxed (no emblems).
I use Gorm MORE than Wilbur. If I hadn’t spent the mats on Wilbur I’d be feeding him off. I have lost SEVERAL battles because of him when on offense. My titan damage is 5-10k less when he is inserted in a team. For me, Wilbur is the utmost definition of useless.
Out of the two for the OP - do up both. They both have their uses.