My second comparison between my old Pentax and my new Canon is bokeh, or the aesthetic blur of the background. Not only does my new camera do a much better job of blurring out distracting backgrounds, but look how much closer and bigger the fountain looks in the second image! My model Jerod (who’s a great sport) was positioned in the same spot for both photos.
Pentax K100d
1/60 sec., f/5.6, ISO 400
18-55 mm lens (38 mm), natural light
Canon 60d
1/30 sec., f/5.6, ISO 200
18-200 mm lens (200 mm), natural light
Photographic Rhodes 
I think the difference you are seeing here is more the focal length difference than the bokeh of the lenses. For a better comparison you could try shooting images in the same focal length in the 18-55mm range. Also, I’ve found that bokeh is sometimes easier to compare with the aperture wide open.
Very interesting pics and that second picture is a lot more interesting even though the model looks the same size in both images. Is that a bird in the top left corner, or just a random background object?
You are right about the focal length – I’m sure that was the primary reason for the bokeh. The aperture was wide open on the Pentax, but not on the Canon. I should have kept them both at the same focal length, though I think the difference would have been minimal. I’m still getting used to my very new camera. And yes, that is a duck in the top corner! Thanks for commenting.