Display area aspect ratio

There is a lot of discussion about 4/3 or 16/9 ratio usage depending on target device. 

We use a lot of stills in our productions. We want those to come right out to the edge with no borders.  Most cameras produce 3/2 pictures and most stock photos are also supplied in that ratio. We want to as much as possible limit need for cropping so we are thinking 3/2 ratio display area. 

Does anybody else use this ratio? Are there any issues that may crop up?

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