You created a list of cameras that are too much alike.
It will be a tough decision.
As far as abilities and features, I only see one that deviates very much from the others.
The Olympus SZ10 does not offer Aperture Priority or Shutter Priority while the other three do have those features.
To select just one, I would have to resort to the old coin toss.
You will be pleased with any of the four.
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I have it narrowed down to just a few cameras here. Let me know what you all think. Quick background: Amateur photographer - taking photos for leisure, enjoy detailed photos including action, still shot, close up, nature, beach, snow, etc. Especially enjoy the flexibility of a longer zoom for more photo opportunity.

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