Success. Heidi and Spencer both reportedly earn around $1.25 million a year for their spot on The Hills. Combine that with Montag's new music career, and these 20-somethings are doing pretty well for themselves, but not nearly well enough to compete with Hollywood's elite. After all, it is reality television.
Attractiveness. Heidi is a lovely gal, but she's gotten plenty of criticism for the road she took to get there (read: a nose job, a boob job and lip injections). Spencer has very pretty eyes, but he could probably do without the facial hair.
Popularity. MTV viewers may love -- or love to hate -- this couple, but their reality TV careers haven't made them universal household names just yet. Last month, about 550,000 people searched Google for Heidi and 200,000 for Spencer.
These two have been together for a couple of years, but they've already weathered a broken engagement and a couple of non-legally-binding weddings before the real thing (see video below). Whether they will ever actually make things official remains to be seen, but the drama quotient is high.
Compatibility. Since Heidi's a Virgo and Spencer is a Leo, this couple has a rare relationship that begins with passion and evolves into something deep. If these signs don't spend too much time finding faults with one another, their union has real potential. Faults? Heidi's plastic surgery is starting to seem like a better idea.