I have a 40mm pancake, the stock 18-55, and a 55-250. I shoot my family (duh), and shoot a lot for the MN chapter of Special Olympics, Law Enforcement fundraising so lots of outdoor runs, jumping into frozen lakes, sporting events, etc. I usually shoot manipulating the time value as to get good blur (say a foot kicking, etc) in an action shot etc. As far as my family, we travel a lot and I am their personal papparazi. This spring we will be in Bacelona and Paris so more outdoor, but landscape shooting.
Basically a hobby on steroids.
I have to get a new body because my XS wiggled out of my bag and plopped out of the trunk of the car, damaging it.
just a fyi only the 40mm will work ont he 6d, 5d or 1d.