It's week four, everybody, and it was filled with a ton of top ten upsets, which made my job very difficult. Some of the stranger reasonings are after the jump. If yours isn't addressed, let me know in the comments.

Rank	Team	Delta
1	Florida
2	Alabama
3	Texas
4	Boise State	4
5	LSU	2
6	Virginia Tech	4
7	Southern Cal	4
8	Ohio State	7
9	Cincinnati	3
10	Oklahoma	3
11	TCU	5
12	Houston	9
13	Oklahoma State	7
14	Georgia	9
15	Miami (Florida)	6
16	Nebraska	8
17	Penn State	13
18	Kansas	1
19	Brigham Young	2
20	Mississippi	14
21	Oregon
22	Iowa
23	Michigan	5
24	California	19
25	Missouri
Last week's ballot

• First things first, Boise State jumped LSU to take the #4 spot. LSU is yet to play a top 25 team (Washington was in there last week, but the USC win is looking pretty fluke-y) and struggled against Mississippi State. Boise State, meanwhile, dominated an Oregon team that is now in the top 25 and dominated what was thought to be a very good Cal team. They haven't been challenged by any of their mediocre opponents, either.
• Ohio State, not Oklahoma, is rising fast again because they don't have Landry Jones. I considered putting Oklahoma higher up, but Jones has been unimpressive in a very important position. Ohio State has looked very solid outside of the close USC game against a few decent teams - Oklahoma hasn't played a decent team.
• Georgia is hugely resurgent. They've played nothing but good teams, and have looked strong after the Oklahoma State loss.
• Cal was terrible.
• Missouri is in over Georgia Tech because, unlike the Yellow Jackets, the Tigers are yet to lose. I consider the teams to be of equal strength, and that was my tie-breaker. Yeah, kind of stupid, but remember: I didn't have UNC in my top 25 either.