The Southern Oregon Hybrid basketball season unfolds tonight, with the boys’ race predicted to be a dogfight and defending Class 6A state champion South Medford the clearcut favorite on the girls’ side. The Roseburg boys (7-2 overall), who were tabbed the favorite in a preseason coaches’ poll, travel to Grants Pass (3-5) in a 7 p.m. tipoff. The other SOH contest has North Medford (7-2) at Crater (6-4). The Roseburg girls (8-2), who have already matched last year’s season win total, host the Cavers (3-5) at 7 at Robertson Memorial Gym. Crater (4-4) visits North Medford (7-1) in the other …