Who should i start? LT or matt forte? Who should i start at QB?

Forte is solid and is likely to give you a decent amount of points. LT, though, can give you a boost you may need to win a big final week in fantasy before the playoffs. However, he has been known to give some upsets this year. For your QB's, I would choose Aaron Rodgers and Philip Rivers. Generally, when LT does good, it's because of Rivers. Rogers is probably going to have another good week using his veteran receivers.