Just got done using Tabnine for about 2 months a month ago. Switched to Copilot. There's not much comparison.
As in copilot is much better than tabnine?
Yes.
I switch between both fairly often because I'm interested in how the space is progressing but tabnine has always been my preference. It seems to aim for a bit of a "lower level" than Copilot which is what I'm looking for.