What's your Favourite Word?

"Peace"? "Joy"? "Happiness"? "Light"? "Lunchtime"?
Or are you perhaps one of those stranger ones, like yours truly, whose first thought is of form and sound rather than meaning? So that the candidates are words that are in the same spirit but rather more colourful, like "illume" or "ebuillient" or "brilliance", or just plain fancy-looking labels for mundane concepts, like "solstice", "sibilance" or "alacrity". Or "raspberry". "Peace" is rather too prosaic for the great idea it represents and something like "understanding" is completely unwieldy ("harmony" is better). Something like "bliss", "delight" or "serenity", on the other hand, has both form and meaning.
Of course, all this is probably deeply personal and completely arbitrary to anyone else who might be reading.