Blake Lewis
Melinda Doolittle
Age: 29
Strengths: Experienced back-up singer who's mature, trained voice shines consistently from week to week.
Weaknesses: There has been no growth on the show - what you see is what you'll always get, and her modesty is getting old.
Chance of winning: 45 percent
Read: Fox's reality show puts a spotlight on its 4 finalists.
Jordin Sparks
Age: 17
Strengths: Her bubbly, charismatic personality makes her easy to love.
Weaknesses: She may be too young and inexperienced with her own voice to last to the top.
Chance of winning: 35 percent
Blake Lewis
Age: 25
Strengths: Most original performer who knows how to choose the right song to show off his beat-boxing talents; a risk-taker whose gambles pay off.
Weaknesses: All beat-boxing aside, his actual singing voice is the weakest of the final four.
Chance of winning: 15 percent
LaKisha Jones
Age: 27
Strengths: America knows she has a "big, ol' voice" and knows how to use it, and easily connects with her single-mom status.
Weaknesses: Song selections include a boring list of R&B classics that keeps her centered inside her comfort zone.
Chance of winning: 5 percent