Um.
Edward sparkles. Like, glitters. And thinks this is scary. 'This is the skin of a killer, Bella', quoth I he. He sat in Bella's room for like two months watching her sleep before she found out. He has had 109 years to come to terms with being a vampire, and he still hasn't. Vampires are materialistic, and buy houses and cars like they're going out of style.
Jacob is a 16 year old kid who does not sparkle, and deals with being a werewolf in less than a month, during which time he still uses his ability to protect Bella,without her ever knowing. As a werewolf, he is potentially very scary. He's a mechanic - he builds things himself with his own hands. Where Edward gets priceless diamonds on Bella's wrist, Jacob gets a hand-carved miniature wolf.
Both Jacob AND Edward admit that in a world without vampires, Jacob is clearly the obvious choice for Bella.
In short, Jacob is more down to earth, grounded, mature kid and at only 16, he's 93 years younger than Edward, and since he's clearly more mature, he's clearly streets ahead.