Cleveland Cavaliers reached the Eastern Conference finals last 2009. They were annihilted though by the Orlando Magic after winning their series 4-1. They recently was defeated by the Boston Celtics in the 2nd round of 2010 NBA playoffs.
Lebron James lead Cleveland to 5 consecutive appreances in the playoffs, 2006-2010.
The Cleveland Cavaliers actually joined the NBA as an expansion team in the year 1970. In just 6 years they made won the NBA Central Division title for the first time.
The Lakers have lost 15 NBA Finals. They made it to a total of 31 NBA Finals, and won 16 of them.
To the finals, once.