Both are good, low-end USB microphones. The Yeti probably picks up a bit more background noise (refrigerator in the next room), and the Yeti has multiple pattern choices. If the use will be voice-overs or spoken word, I would go with the Yeti. Be advised that the Yeti is very big and heavy, and its size limits the range of accessories. I think there are only two shock mounts that will work with the Yeti. The AT2020 looks like a conventional large diaphragm condenser mic (a bit shorter than most), and it works with inexpensive shock mounts such as the Samson shock mount.