Especially in the case of a groom with auburn or red hair, who tend to have more ruddy complexions, just like Mr. AZ. Now I'm not saying that Alan looks bad in this black suit above, but it really does bring out the redness of his skin tone. In that case I vote for deep dark brown. This earthy tone takes away a lot of ruddiness from the face and is more universally flattering, in my humble opinion.
Personal Photos from Men's Warehouse
This is when we fell in love with brown, when we realized it was much more softening like ivory. Are you taking into account your groom's skin tone when picking out the suits or tuxes your guys will be wearing?