best/favorite Monty Python sketch

DoomVoyager

Ministry of Silly Walks possibly... also the both of the Biggus Dickus scenes in Life of Brian.
chickpea

my kids, thanks to their dad's oft repeated line from this skit
request cheddar by asking for "the single most popular cheese in the world"
http://www.youtube.com/watch?v=B3KBuQHHKx0
beksbks

Oh Chickpea!!! The very one I was going to mention!
Homerovah the Almighty

Here's one of my favorites
http://www.youtube.com/watch?v=grbSQ6O6kbs
Homerovah the Almighty

Here's one from The Life of Brian
http://www.youtube.com/watch?v=grbSQ6O6kbs
Gregor

"...I eat my lunch, I cut down trees...I go to the lavatreeee...."
Homerovah the Almighty

Some more of Life of Brian
http://www.youtube.com/watch?v=u88kf1J6Kv4
Homerovah the Almighty

And of course we must include the Bigus Dickus sketch
http://www.youtube.com/watch?v=zPGb4STRfKw
I quit!

I really can't pick just one because there were so many good ones but one that come to mind is the "no one expects the Spanish Inquisition" sketch.
LouBelle

I enjoyed Search for The Holy Grail, the clopperty of the horses, the knight that held the bridge "it's only a flesh wound", the knights of Ni.