Other than Wisconsin (which lost twice last week) dropping, the top end of my ballot is nearly identical to last week. The top 3 remained intact.
The teams with the most impressive weeks, in my opinion, come from the Sunflower State.
I moved Kansas from No. 15 to No. 8. The Jayhawks beat TWO top-10 teams last week, at No. 8 Iowa State and vs. No. 9 Oklahoma State. KU has three consecutive wins against teams currently in the Top 25.
Kansas State had a good week, too. I moved the Wildcats from just outside my Top 25 (I had them No. 27 last week) up to No. 19 this week. That's a huge jump, largely attributed to the fact that several teams ahead of them lost games. But, K-State also beat No. 25 Oklahoma and knocked off a solid West Virginia team to improve to 11-1 over its last 12 games.
I also moved Pittsburgh into my top 25 (I had them 26 last week) despite losing to Syracuse. Like K-State, the Panthers benefited from a lot of losses ahead of them, and I don't like moving teams up after losing, but they were impressive in a road loss against one of the best teams in the country. I think Pitt is better than I've been giving it credit for this season.
Worst weeks? Gotta be Ohio State and Iowa State. Ohio State has lost three in a row after a 15-0 start. Iowa State has lost three in a row after a 14-0 start.
As for Colorado, I left the Buffs on the ballot, barely, at No. 25. Obviously a very tough week, losing Spencer Dinwiddie and then losing at home to UCLA. But, I still believe that when the Buffs get some time to adjust without Dinwiddie, they'll be OK. And, honestly, a few key losses - notably Creighton against Providence and UConn against Louisville - kept the Buffs in my Top 25.
3. Michigan State
4. Wichita State
7. San Diego State
10. Oklahoma State
17. Ohio State
18. Iowa State
19. Kansas State