Well if your only allowing two factors then ok you win.
But those two factors don't mean anything to me.
Things like smell, taste, burn, smoothness of smoke on my throat, expansion in my chest, the actual high, amount of visible trich's, density, how well the bud was grown,
how well it was cured, how long the high lasts, it's medical properties, and how sticky are the buds , are all things customers look for in the buds and are all associated with giant rock hard donkey dick colas.
You can tell all these things by touching and smoking.