Raul - you're not wrong. As a former MA resident (currently work there), I can honestly say driving here is the worst. NJ and NY are congested, but not as entitled or aggressive. I'll add drivers from southern NH to that group too.
For nearly the last ten years I have had beater/commuter cars. These cars take the brunt of daily driving in the New England area, and take the salt, terrible parking, job sites and ridiculous drivers on the road. The best car was a 2003 Malibu with V6, rust and dents everywhere and faded red paint. I called it Nothing to Lose. I could leave the keys in it in Dorchester with no worries about being stolen. But it had the zip to really get around idiots on the road. Loved that car. Ironically, due to looking like it was owned by a careless teenager, people would stay FAR away from me!
I'm actually a pretty calm driver, but what really gets me absolutely fuming is the speed-checkers. The folks that get in the left lane and match speed with the right lane. Not folks that are simply driving a similar speed, but actually match speed and stay there. If their right lane counterparts exit or move, they blast ahead at ridiculous speed to the next right lane occupant, slow down and block the lane again.