I wish I could say what my favorite word was, but I can't think of one off the top of my head.
What I do know for certain is that I tend to go through phases of using certain phrases, usually following the trends of others, like "just sayin'."
Picking favorites is always difficult for me, because there's always something new on the horizon that could always become my new favorite.
A few words I do like:
To name a few.