Drop bars for 40 yrs. Then I got old and fat and switched to swept back upright bars. IMHO straight flat bars are an abomination appropriate for motorcycles and mtn bikes where you’re descending steep inclines but not good for regular riding without a range of add-ons/bar ends for more positions. When I was transitioning to upright bars I was also commuting with heavy front panniers and found drop bars inadequate for low speed maneuvering in traffic. Traditional swept back are much better than straight bars. Drop bars are standard for racing, high output and aerodynamics.