I will also throw some names in the idol hat by season.
Season 1. Kelly Clarkson
Season 2. Kimberly Locke, Clay Aiken
Season 3. Fantasia, Jennifer Hudson, Latoya London
Season 4: Carrie Underwood, Vonzell Solomon, Nadia Turner, Nikko Smith, and Anthony Federov
Season 5. Chris Daughtry, Elliott Yamin, Taylor hicks, and Kellie Pickler...but NOT! Katherine McPhee.
Season 6. Blake Lewis, Chris Richardson, Gina Glocksen
Season 7. David Cook, David Archuletta, Brooke white, Melinda doolittle, and Lakisha Jones
Season 8. Adam Lambert, Kris Allen, Allison Iraheta, and Matt Giraud. And maybe even Anoop Desai.
Season 9. Crystal Bowersox, Lee Dewyze, Sibhan Magnus and Casey James.
Most Annoying contestants!!
Sanjaya, Scott Savol, Brenna Guthers, and the Britnum Twins.