Comments. Who do you think is more prepared? Who do you think can relate better to the public? I think Biden is a little more prepared, however he doesn't seem to appeal to the public too much.
I see where you're coming from, but they need to persuade. They can't go saying everything that's bad about them. The way politics work is through the use of exaggeration. I doubt 50% of what they say will be accomplished, but you gotta go with the one who promises the most things you want, because then you're bound to get at least some.