1. Red Grange (RB, 1923-25): Arguably the most iconic figure in Illini football history, Grange revolutionized the game with his dazzling speed and elusive moves. He won the 1925 Heisman Trophy, led the nation in rushing three times, and sparked the "Grangemania" phenomenon that captivated national attention.

2. Dick Butkus (LB, 1962-64): "Butkus" became synonymous with linebacker excellence. He won the 1963 Heisman Trophy, the Lombardi Award, and was a unanimous All-American. His ferocity, tackling prowess, and leadership anchored powerful Illini defenses.

3. Jeff George (QB, 1987-89): A controversial, yet undeniably talented quarterback, George holds multiple Illini records. He won the 1989 Sammy Baugh Award, passed for over 8,000 yards in just two seasons, and showcased raw NFL-caliber talent that landed him as the No. 1 overall draft pick.

4. Rashard Mendenhall (RB, 2004-07): Mendenhall rewrote the Illini rushing record books, holding the program record for single-season rushing yards (1,681) and career rushing touchdowns (44). He carried the offensive load during his time and was a key factor in the Illini's 2007 Rose Bowl appearance.

Honorable Mentions:

✦ Jim Grabowski (QB, 1964-66): Led the Illini to two Big Ten titles and became the NFL's first Jewish starting quarterback.

✦ McKinley Brown (DE, 1975-77): Holds the Illini record for career sacks and was a dominant force on the defensive line.

✦ Bobby Mitchell (WR, 1958-61): A pioneer for Black athletes in the Big Ten, Mitchell was a dynamic receiver and went on to NFL stardom.

It's important to note that this is just a starting point, and other players could be argued for based on different criteria.