From Robert Feder's column...
1. WBBM 780-AM/WCFS 105.9-FM all news, 6.7 (6.6)
2. WVAZ 102.7-FM R&B, 5.8 (6.3)
3. WBEZ 91.5-FM public radio news talk, 4.9 (4.3)
4. WLIT 93.9-FM adult contemporary, 4.6 (4.8)
5. WOJO 105.1-FM Mexican regional, 4.5 (4.2)
6. WDRV 97.1-FM classic rock, 4.3 (4.1)
7. WXRT 93.1-FM adult album alternative, 4.0 (3.6)
8. WLS 94.7-FM classic hits, 3.8 (3.8)
9. (tie) WGN 720-AM news talk, 3.5 (3.6); WTMX 101.9-FM hot adult contemporary, 3.5 (4.1)
11. WPPN 106.7-FM Spanish adult contemporary, 2.9 (2.8)
12. WKSC 103.5-FM Top 40, 2.8 (2.7)
13. WRME 87.7-FM soft rock oldies, 2.7 (3.3)
14. (tie) WSCR 670-AM sports talk, 2.5 (2.5); WBMX 104.3-FM classic hip-hop, 2.5 (2.7); WGCI 107.5-FM hip-hop, 2.5 (2.4)
17. (tie) WUSN 99.5-FM country, 2.4 (2.3); WLEY 107.9-FM Mexican regional, 2.4 (2.6)
19. (tie) WBBM 96.3-FM Top 40, 2.3 (2.5); WFMT 98.7-FM classical, 2.3 (2.1)
21. (tie) WKQX 101.1-FM alternative rock, 2.0 (1.9); WMVP 1000-AM sports talk, 2.0 (1.9)
23. WSHE 100.3-FM adult contemporary, 1.8 (2.2)
24. WCHI 95.5-FM rock, 1.7 (1.7)
25. WPWX 92.3-FM hip-hop, 1.3 (1.2)
26. (tie) WLS 890-AM news talk, 1.1 (1.7); WVIV 93.5-FM Spanish contemporary, 1.1 (1.2); WZSR 105.5-FM hot adult contemporary, 1.1 (0.7)
29. WCKL 97.9-FM contemporary Christian music, 1.0 (1.2)