Battle of the Bachelors

Movie-star looks, a royal pedigree and a mysterious, intimate smile – Prince William casually exudes it all on his way to a London ceremony earlier this month.

Combining a polished pinstriped suit with tousled hair and a five o'clock shadow, Kutcher is laid-back and sexy at a New York event in May.

What could be sexier than a handsome prince showing off a healthy glow during a polo match?

How does Kutcher maintain that enviable physique? A jog in Beverly Hills earlier this month helps.

Even just out for a stroll in jeans and a baseball cap, Kutcher looks cool and collected. "I only do things that make me happy," the actor told InStyle in February.

Prince William takes a break from his art history studies at the University of St. Andrews in Scotland to pose for a photo in May. The similarities to his mother, the late Princess Diana, are undeniable: "He has her smile, the same blush to his cheeks," a Diana pal told PEOPLE in 2002, "and the same grace."

Prince William looks royal indeed – and yet, perfectly at ease – in a vested tuxedo with a sporty yellow tie at a garden party in Scotland in February 2002.

Perfect pecs, awesome arms – Kutcher more than passes the shirt-free test while on a surf break in Australia in February. Is it getting hot in here?

He could easily be filming a commercial for clothes or men's cologne, but Prince William is simply enjoying a day at the beach near St. Andrews in May.

All this, and socially responsible too? Kutcher gives a sweet smile at a January charity go-cart race in San Diego.

Prince William flashes his killer grin before a polo match in August 2002. "I think he will make a fantastic king," his uncle Earl Spencer told PEOPLE in 2000. "He has some of his mother's magic with people." Indeed.

Kutcher, who got all dolled up for the MTV Movie Awards in May, doesn't think his appeal stems from his looks. "I don't think my physical attributes are my best attributes," he told PEOPLE recently. "But people do say I have nice eyelashes. I have a double row."