Which LB week 7?

Scoring:  Solo tackle = 1.5 pts (no points for assists), sack =7pts and int=10 pts

1.   Bradham vs Min
2.  Lofton at Det
3.  KJ Wright vs Stl
4.  Marshal vs SF
5.  McClain vs NYG

Who is the safest play with the most upside using the scoring system above?  Thanks