My favorite four (as of today) are:
St. Paul (here he is, caught up to the "third heaven")
St. Teresa of Avila (featured here on a new book from Pauline Books & Media)
St. Patrick (the St. Paul of Ireland)
My favorite not-yet-saint... for now, that would have to be Dorothy Day. I just read a massive biography, and it convinced me that she was a person who truly lived the Gospel, loving God above all things, and certainly loving her neighbor as herself (and possibly even more than self).
Oh! I forgot to tag anyone with this meme! Let's see who Karen, Lisa and Sr. Lorraine have to add.