As an Oregon resident, i would prefer U of O.
Oregon State Focuses on its School of Agg and Enginering, and if you wana go that route, by all means, go there.
U of O on the other hand, is the all around better school, excluding Ag and Enginering, U of O is better in everyway. Closer to the Mt, better education, better football team, and most importantly, hotter chics.
Lets put it this way, if i was going to school in state, i would go to U of O.