Goldman Sachs (NYSE:GS) is sitting on top of the world. Over the past two years, the share price more than doubled, as mergers-and-acquisitions activity soared and the stock market remained strong.

But the white-shoe investment bank still may have room to run.

A recent article in The Wall Street Journal suggested that Goldman is undervalued, relative to Lehman Brothers (NYSE:LEH), Bear Stearns (NYSE:BSC), boutique Greenhill (NYSE:GHL), and even alternative investment manager Fortress Group (NYSE:FIG). With Goldman's talent and history of success, it's tough to bet against this "master of the universe."

Is now the time to get on board with Goldman, or has this firm seen its best days? Fool analysts Matt Koppenheffer and Tom Taulli are here to settle the debate once and for all.

Duel on, Fools!

Financial services editor Joey Khattab does not own any of the shares mentioned. The Fool has a disclosure policy.