If you could permanently delete a character....who would it be?

shut_up_heather

I'd choose either of the regular Captain Americas or Super-Skrull.

Chobbly

Groot, for some reason I r3 him and as I thought, it was a bad idea, he does gain some buffs and all but he lacks everything

Groot could easily get a doubling of both the duration and potency of his Pacifism-gained buffs. It wouldn't fix him but at least the Pacifism buffs would be more noticeable.