GPT-3 has you crafting a conversation while HuggingFace was much easier to use.
Blenderbot v2 will have memory and I am looking towards replacing my version with Blenderbot v2.
I evaluated both HuggingFace and parlai. At first I tried to understand how parlai worked and I couldn't figure it out. Once I moved forward HuggingFace I knew enough python to figure out how to use blenderbot. I am either hoping that Facebook will contribute it or I will just figure out parlai once I release my side project.