While I've never gotten to use the S2, I do own the S1 and have had use of the S3 for a month last summer. I like both but the S3 definately is better with more features. All of my cameras have been a Canon! I also own the A40 digital, Rebel II SLR, and Rebel XS SLR too.

Here's a few pix I took last summer with the S3....(sorry for my inconsistent resizing)


Color select function




Macro of a sunflower leaf




Bumble bee on a coneflower with zoom




Some type of catipillar with macro




My clemantis with Macro




And one I took 2 years ago with my S1....

Beach scene on wide angle