Welcome! Rosemary & Thyme coming later? :) Just kiddin'!
There's too many great lessons to try and choose a favorite. However I am enjoying the Blues courses a great deal. I did the Fundamentals, then the Rock Primers, then started on the Blues lessons. They since added full Rock courses, so I suppose I should start back on them someday to see what's new.
...so ever since then, I always hang on to the buckle.