I'm convinced that additional bow weight helps my accuracy. I have bows that range in weight from a 1 1/2# Ron LaClair Shrew to a 3 1/2# Bob Lee Ultimate. While the weight of the Ultimate is certainly more noticeable in the field than the Shrew, it is not burdensome, and certainly a lot less than a compound bow or a rifle.
I also find that it is useful to switch between the light and heavy weight bows once in a while. After shooting a heavy weight bow for a while, I do have a feeling of loss of control when I pick up a light weight bow. But after shooting the light weight bow for a while, the feeling of control comes back, and I think my accuracy in general improves by the extra attention I have to pay when shooting the light weight bow.
I've never shot with a weighted glove, but fwiw, I don't think that would stabilize the bow like additional bow weight would. For one thing, the location of the weight makes a big difference. One ounce at the end of a long stabilizer makes a big difference, whereas one ounce in the handle does not. Second, we are encouraged to shoot with a light grip, and a light bow would rattle around in a weighted glove as much as it would in your bare hand. In order to have any effect on bow stability, you would probably have to grip the handle snugly, which might offset the benefit of having a heavier bow/glove.