I do have a few favorite words that I like to use in writing. When speaking of many things, I like to use the word, myriad, but I dislike using plethora. If possible, I will try to weave the word burgeoning into my formal writing to describe growing or expanding processes. If I speak about something that is everywhere, ubiquitous is a grand term. In letters to inept bosses and disreputable businesses, I explain that I am befuddled and bewildered.
There is another category of words that I favor because of their intrinsic meaning. Love, grace, hope, forgiveness, patience, understanding, compassion, empathy are such words with profound meaning.