Today I split my classes up into groups of 3-4 students and gave each group a clicker. We then went through the entire Jeopardy board (20 questions today). I use questions from tests they took this semester. The clicker system keeps track of the team scores and after the time runs out for each question the correct answer is displayed on the screen. This provides an opportunity to talk about the question and why one answer is better than the rest. At the end of the game I show the scores and crown the Jeopardy champion!
As far as review games go, Jeopardy requires a significant amount of work to set up. Before class I went through all of my old tests and transferred the questions onto the game board. Jeopardy isn't the game you want to use if you need something quick, but if you have time to plan ahead it's always a class favorite.