3 losses or less.
It was our first season of independence in 2011. We started the season 1-2 with a one-point loss to Texas and blowout loss to Utah. We eventually lost to TCU in Jerry World. We didn't get any Top 25 votes in the final post-bowl vote. That's our only unranked season at 3 losses or less. The other 3-loss seasons finished with a #16, #18, #22 (twice), #23 and #25. We never finished ranked with 4 losses or more.
Out of 42 seasons including 1977, we finished with less than 3 losses 19 times, or 45.2% of the time. That's not a bad track record at all.
This would be a good season if we add to that list this year and would be an outstanding Top 15 season if we only lose one more time and a special Top 10 season if we don't lose again.