Between spit and snot which has more germs?

Snot, and I shall explain why.

Snot, or mucus, is a substance which contains all the pathogens and dirt particles that enter the respiratory passage.

Spit, or saliva, on the other hand, is mostly water, with some proteins and enzymes also inside it. In fact, the saiva of some organisms has antiseptic qualities, which is why you will see lions licking their wounds, literally.