Your question is valid, Ian. Earning your wings at a Part 61 schools, which has fewer restrictions placed on it, requires you fly more hours before being eligible for various licenses. However, a Part 141 school is more closely regulated in how it presents your training. Therefore, it can offer you the same ratings in fewer hours. Regardless of the path you choose, you shouldn't look at the minimum hours complete a rating as a goal. Be realistic, you will probably need more time than many schools advertise in their 'grab your attention' ads. You should be most concerned with safety and quality.