This post is one of several on business heirs apparent. Let us know in the comments whether you think about Ivanka Trump, and be sure to check out the other heir apparent posts.

Ivanka Trump, 26, daughter of Donald Trump, is an heir apparent to her dad's real estate and entertainment holdings. Her business title is the vice president of real estate development and acquisitions at the Trump Organization, which is a holding company for many of Trump's businesses (Trump's casinos are part of Trump Entertainment Resorts (NASDAQ: TRMP).

Ivanka, while arguably the most famous of Trump's children, isn't his only heir apparent. Her siblings Donald, Jr., and Eric are also currently executive vice presidents, according to Wikipedia. But she stands out as the one likely to claim the top job given her love of the limelight -- she is a frequent cover girl and has appeared on the Apprentice -- as well as her oft-proclaimed drive to succeed in business.

However, I for one am getting sick of all the talk about her heir apparent status. Money-losing casinos, licensing deals for everything from hotels to cologne, and a TV show that's been in rapid decline since the end of its first season? That empire? What's second prize, 50 shares of Bear Stearns?

This post is one of several on business heirs apparent. Let us know in the comments whether you think John Elkann should take up the reigns of Fiat, and be sure to check out the other heir apparent posts.

Gianni Agnelli, principal shareholder of Fiat and grandson of the company's founder had been grooming his nephew to take up the reins of the family business when that nephew died of a rare form of cancer in 1997. Gianni's grandson John Elkann became the next heir apparent at the age of 22, when he was appointed to Fiat's board. After Gianni passed away in 2004, Elkann assumed the vice chair of not only the Fiat board, but the board of holding company that controls the Agnelli family stake in Fiat.

Elkann stepped into his new role at a time of crisis for Fiat. Mismanagement and a damaged brand image required a bank bailout to avoid bankruptcy. Recovery meant selling assets, management changes, and reinvesting in the core company. Renewed strength in the struggling automotive division (which includes the Fiat, Lancia, and Alfa Romeo brands) helped lift the company. Now, among other things, Elkann spearheads the company's efforts at global expansion.

This post is one of several on business heirs apparent. Let us know in the comments whether you think Sam Branson should take up the reigns of Virgin, and be sure to check out the other heir apparent posts.

One might say Sam Branson is a fortunate son, born into a life of money, leadership, and rock-and-roll. His father, whimsical billionaire Richard Branson, carries a net worth of $3.8 billion and maintains a fleet of Virgin-branded enterprises. Branson built this umbrella of companies from the ground up starting nearly 40 years ago.

The Virgin brand soared to prominence in the early 1980s as a record label featuring such acts as the Rolling Stones and Janet Jackson. Ahead of the bubble burst for the compact-disc industry, Branson unloaded this arm of the Virgin empire in 1992, focusing on his pet project -- Virgin Atlantic Airways, which launched in 1984.

Other Virgin progeny include pay-as-you-go mobile-phone service Virgin Mobile (sold to NTL for about 1 billion pounds in July 2006) and Virgin Fuels, which seeks to develop environmentally friendly and cheaper fuel sources for automobiles and airplanes.

Branson's sense of adventure, critical in his business ventures, has also taken him into and across the world's oceans. He has broken speed records in both boat and hot-air balloon, and recently boarded an amphibious vehicle to cross the English Channel in record time.