JPEG is commonly used method of lossy compression for digital photography (image). The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. .jpg or .jpeg is the most common image format by digital camera and on website.

TIFF is a file format for storing images, popular among graphic artists, the publishing industry, and both amateur and professional photographers in general. The TIFF format is widely supported by image-manipulation applications, by publishing and page layout applications.

JPEG uses lossy compression to reduce file size for using on internet or creating backup CDS. TIFF files are much larger than JPEGs making them harder to upload or email.
JPEG are supported by more software and photo sharing websites than TIFF.
Uncompressed (lossless) TIFF is the standard for most commercial digital photo printing needs.

Other Comparison: 3GP vs 3G2 / MP4 vs FLV / MKV vs MP4 / MP4 vs MP3 / 3GP vs MOV / 3GP vs FLV / M2TS vs MP4 / MP4 vs 3GP

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