Based on average hourly wages, phlebotomists tend to earn more than medical assistants, with phlebotomists earning approximately $17.61 per hour compared to medical assistants' $15.61 per hour. However, it is important to note that salaries can vary depending on factors such as geographic location, level of experience, and specialization. Medical assistants have the potential to increase their earnings over time as they gain experience and pursue additional certifications or specialization in fields like pediatrics, cardiology, or other medical areas. Ultimately, while phlebotomists generally have a higher starting wage, medical assistants can potentially earn more as they advance in their careers and develop specialized skills.