if you really want best picture on device without raw editing, you might want to look at porting some automated tools, similar to cornerfix suggested earlier, and make a scipt to batch process the files. the default camera setting is only applying a series of image processing algorithms, so if you can replace them with your own preferred set. string them together in the correct order and problem solved. not sure off top of head if imagemagick could provide some routines you may find helpful.

i'm getting sick and tired of some of the petty squabbles, less than helpful comments, put downs for suggesting ideas and trolling thats going on in certain threads. especially from some people I would expect better behaviour from. part of me really wants a dev only section that needs access rights given to individual users.