Avast vs Clam ? anyone have preferences

Does anyone have a preference in usage and experience between Avast and Clam ? Commercial vs. Open Source? just the usual differences and advantages ?

I tried both and found that Clamav was a bit faster. I must admit I am partial towards Clamav. But then again I haven’t tried new versions in about two years.

Thanks for your thoughts, Razvan. Our ancestors apparently were neighbors. My paternal grandfather immigrated to America in the early 1900s from Bulgaria. He or his wife were part German.