Agree, it's a tough problem ...
That's a tough one but Treadwell is a beast. I choose Wilson b/c he's at State. If Treadwell was at State, I would choose treadwell. wilson's blocking is becoming very very vital.
Treadwell came in as more of a developed WR and has 25 catches for 362 yards; has 4 TDs and averages 14.5 ypc. He accounts for 20+% of OM catches. (25 of 122) He is a much bigger part of the OM offense than Bear is of MSU's. OM is pass first - run second and they only have 715 yards rushing. Stop their passing and you stop OM.
But, even though that Bear only makes up 16% of MSU's catches (14 of 89), he has more TDs (5) and greater ypc 17.6 than Treadwell. As mentioned, His blocking has been and will continue to be huge for MSU. Bear came in and is improving each and every game. At an athletic 6-5, 225, he has more 'upside' as a post up WR.
Even though State runs a somewhat 'balanced run first - pass second' offense (MSU has 1363 yards rushing & 1346 yards passing), and Dak only has 89 passes, MSU has more passing TDs (15) than OM (14) and MSU (15.1) averages more ypc than OM (13.1).
BOTTOM LINE - Treadwell is more valuable to OM due to their 'pass first' offense. Bear has more upside as the State 'go-to' end zone threat and will improve every game.