Difficult to say with so few reviews, but they are probably neck-and-neck. If you read the specs, they are almost identical in the basics; same size sensor, same aperture and focal range lens. Those are the things that determine image quality. The Canon has fewer megapixels, which in theory would mean lower noise, but it trades off detail, and how a camera implements noise reduction has a bigger impact on final image quality than the pixel count.
Both cameras have a long zoom. Both cameras have burst modes for action, but be aware that once you use it, the camera will stop operating for probably 10-15 seconds while it processes the burst. Neither camera will be good in low light. Low kight static subjects will be okay, but low-light action will be impossible.
If you give up the extra long zoom, the outgoing SX230 and ZS10 will give you the same image quality for less money.
Amateur photographer looking for lightweight camera with super long zoom, quick/fast frame per sec. for taking action shots of people and pets, and good in low lighting conditions. Have had a Canon A95 for several years. It takes good pics, but not good enough for any distance, low light and action shots.

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