So YES, there is a difference. Get a pro to check out the alignment of your shoulders. I would be they are pointed to the left of the target causing the swing path to be across the ball with an open clubface. Square up your shoulders, take a full shoulder turn, keep your elbows close together throughout the swing. Lately, I have been pulling the ball to the left.
Shoulders probably open at address.
Something is causing the clubface to be slightly closed and the path of the swing is headed left of the target line at impact. Depends on how willing you are to work on your short game from 90 yards in. I would suggest a big focus on the short game and a mind set of getting the ball in play off the tee. We are talking about average players, people who play on week-ends, retirees, etc. This is a great controversy among our group and we would appreciate an answer as soon as possible.