Is nicotine worse than caffeine?

Could you elaborate on why some people believe nicotine to be more harmful than caffeine? Is it due to its addictive nature, the potential health risks associated with smoking, or both? How does the impact of nicotine compare to the stimulatory effects of caffeine on the body and mind? Additionally, are there any studies or research that provide insight into the relative dangers of these two substances? I'm interested in understanding the basis for this comparison and any potential consequences of prolonged exposure to either nicotine or caffeine.