This has probably been done a million times before but hey, it’s always fun.
My current two favourite words are ‘dirigible’ and ‘saponification’. So now you know.
My favorite word is an antique one-it seems to have gone out of common useage by around 1920-“plugugly”!
Please help me to revive this excellent word-you can use it to describe a whole lot of people!
Juxtapose.
It has an x. That means it’s cool.
I’ve always been fond of detritus.
Hmm, that sounds funny…
Chicken Lover, not only has it been done before, it’s being done right now. It’s in IMHO, which is the appropriate forum for survey-style questions like this. You may want to give that thread a look.
debacle
Shiznit
Baznatch
look 'em up, and only 1 will be in the dictionary 
You can find most of my favorite words in “Jabberwocky” by Lewis Carrol. Highlights include:
Jabberwock
Frumious
Vorpal
Frabjous
ham
a truly excellent word.
also: rundogrun.
the poster ‘rundogrun,’ i’m guessing, intends for it to be pronounced like you are telling a pooch to go for a jog (run, dog, run) but i always prounced it like ‘rundo, grun.’
it sounds like a dance performed by muppets - the rundogrun.
i like to call my female friends callipygian or zaftig…
I also like hoi polloi, glockenspiel, and magnanimous.
I’m rather fond of plummet.
spork
pants
trousers
poke
I like “Haberdasher”, “gibberish”, “sushi”, “supercalafragilisticespealidocious”, “jabberwocky”, “McMuffin”, “tomfoolery”, “cerulean”, and “Yoda”. (there are others, I just can’t think of any more.)
juxtapose is good. ubiquitous. obsequious. instigator.
in the subcategory of country names…Djibouti and Zimbabwe
Eric Zorn (a columnist in the Chicago Tribune) had a few articles on said topic a while back…
http://chicagotribune.com/news/columnists/zorn/feature/0,1438,14424-14424,00.html
Your forgot: Bandersnatch!
For you Dr. Demento fans: Bulbous Bouffant.
oo!-oo!-oo!-----
we can’t for get… “KNNNNNNNIGGETS!”
iunximus.
you asked.
Strategerie
This word evokes memories of the summer we spent in the North of France, drinking wine and dancing at the local festspeilhaus; of the gentle summer breezes and the wonderful fresh baked bread; of the carefree strolls we took in the afternoons through that enchanted land:
cluster
Gusty.
Tsunami.
Krupps. (the coffeemaker brand)
Mmmmm. (something good is always happening when you hear this)
Cocktails.
Ego-centric.
Aerosmith.
Xanax.
Free.
Vodka.
Bastille.
Spackle.
Honeysuckle.
Fortification.
Presently.
Sparkles.
“Skank”