Arizona has won 13 of its last 14 with only loss on the road at Texas Tech. During that stretch they've beaten 5 ranked teams including avenging that loss to Texas Tech.
Florida has won 7/10 with only 2 of those vs ranked opponent. Granted those were both vs #1 team in teh country, but still 7/10.
Alabama more interesting. They've also won 13 of last 14 with 4 of those vs ranked teams. Not quite as impressive as Arizona, but obviously very close. That explains why they aare actually tied in BPI so OP didn't read that right.
Purdue has won 12 of it's last 16 and 11 of last 12, but have only beaten 2 ranked opponents during that time.
tl:dr = OP post is full fo shit, Arizona deserves it's spot. Florida is gay.
The fallacy with your thinking is that many of those ranked teams that Arizona had defeated are
no longer ranked:
#16 Cincinatti (unranked,
#50 net)
#21 West Virginia (unranked,
#39 net)
#25 Baylor (unranked,
#26 net)
#3 Iowa St (currently #10,
#10 net)
#13 Texas Tech (currently #12,
#8 net)
Arizona has currently defeated
only two ranked AP teams: Iowa St & Texas tech.
Arizona (17-6, 11-1) also has
many more losses than either teams like Alabama (20-3, 9-1) or Florida (20-3, 7-3).
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As for Florida's top net wins which is more important for NCAA seedings purposes:
-------------------------------
#101 Virginia
#87 Florida St
#64 Arizona St
#59 Wake Forrest
#51 North Carolina
----- SEC ------------------
#43 Arkansas
#42 Vanderbilt
#34 Georgia
#31 Texas
#4 Tennessee
#1 Auburn
-----------------------------
Florida still has five Q1 games (#30 Miss St, #34 Georgia, #13 Texas AM, #6 Alabama & #22 Ole Miss) and two Q2 games left (vs #44 Oklahoma & # 80 LSU)).
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Alabama's top net wins:
--------------------------------------
#72 McNeese St
#69 Rutgers
#51 North Carolina
#32 Creighton
#12 Illinois
#3 Houston
----- SEC --------------------------
#44 Oklahoma
#43 Arkansas
#42 Vanderbilt
#34 Georgia
#30 Miss. St
#17 Kentucky
--------------------------------------
Alabama has won 14/15 games and is currently #1 in Coaches poll and #2 AP poll.
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Anyways according to the net ratings, Arizona (#7), Alabama (#6) and Florida (#5) are all similarly rated highly and bunched together. Each of them want to progress to the #1 position where only one team can succeed there and there is still plenty of basketball to be played.