On April 18, 117 cardinals will enter the Sistine Chapel and lock the doors behind them. When they emerge, days later, one will likely wear the vestments of the Vicar of Christ. Nobody--not the pundits, the bookies or even the electors--can say for sure who will succeed John Paul II. But a list of papabili (or "pope-ables") has taken shape: Joseph Ratzinger of Germany, who would defend his predecessor's positions; Jorge Mario Bergoglio of Argentina, who would bring his characteristic humility to the Holy See; Austria's Christoph Schonborn, whose bearing is already regal. A look at some of the rest of the men who would be pope:

Cardinal Angelo Scola, 63
Patriarch of Venice
Conservative but curious, he's passionate about bioethics and wants to heal the 'fracture' between church and culture

Cardinal Oscar Andres Rodriguez Maradiaga, 62
Archbishop of Tegucigalpa
A moderate committed to social justice, he speaks eight languages. Could get the nod as a compromise candidate, but for many cardinals he's too young.

Cardinal Francis Arinze, 72
Prefect of the Congregation of Divine Worship, Nigeria
Blunt and deeply spiritual, this conservative would alienate some but captivate the increasingly Roman Catholic Third World

Cardinal Godfried Danneels, 71
Archbishop of Mechelen-Brussels
Media-savvy and respected among the cardinals as both intellectual and pastor, he'd push for curial reform

Cardinal Claudio Hummes, 70
Archbishop of Sao Paulo
Coming from the largest Catholic nation helps--if a conservative conclave can overlook his progressive past

Cardinal Dionigi Tettamanzi, 71
Archbishop of Milan
The Italian favorite. He speaks few languages, but his conservatism and personal warmth make him a safe pick.