Loggenrock's route is fine starting from NH, but if you start from Hartford, the time spent in traffic through Waterbury and Danbury on I-84 is nothing compared to going north on I-93 to pick up the Mass Pike or Rt 9. From Hartford, I-84 is the only reasonable route timewise. Also I-88 from Albany to Binghampton was pretty rough, although members who live up that way swear it's been fixed.
It's been a few years, but the only part of I-84 that was an issue (once west of CT) was the first few miles in PA. They were doing bridge construction and it was down to 1 lane. I'm sure that's over now.