Telephoto Zoom Lens For Canon Slr Cameras

Sandra asks…What kind of lenses should I use for my Canon SLR camera?I have a Canon Rebel Ti which is a 35mm camera not a digital. It takes EF lenses. I am not much of an expert when it comes to photography. But I do understand a lot about it. I found these three lenses that I was considering buying and wanted to know what you think. If you have other suggestions, please post a link to the lens that you think is better. Also, who do you think makes the best cameras? Canon, Nikon, etc..... I

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