The one problem I have with MS Windows formats is they have a bad habit of changing things on you. (Look at how many times they've changed the file format for *.DOC and *.XLS files over the years.)
FLAC is an open-source file format and as such I have a higher confidence in its long term stability. But that's just me. Others probably feel differently.
There is a fuss in some quarters as to whether FLAC sounds the same as uncompressed WAV files. I've got a Squeezebox 3 with an external DAC. I did a variety of back-to-back comparisons and satisfied myself that they sound identical. (Since there is no data loss in a FLAC, any sound difference would have to arise in the decoding process. Some argue the extra decoding load of FLAC is responsible for a difference in sound. As noted, I did not find that to be true.)
However, the best thing for you to do is to convert the same files to the different formats and compare for yourself. Pick the one you like best. Why let strangers on the internet decide for you? ;-)
FLAC is an open-source file format and as such I have a higher confidence in its long term stability. But that's just me. Others probably feel differently.
There is a fuss in some quarters as to whether FLAC sounds the same as uncompressed WAV files. I've got a Squeezebox 3 with an external DAC. I did a variety of back-to-back comparisons and satisfied myself that they sound identical. (Since there is no data loss in a FLAC, any sound difference would have to arise in the decoding process. Some argue the extra decoding load of FLAC is responsible for a difference in sound. As noted, I did not find that to be true.)
However, the best thing for you to do is to convert the same files to the different formats and compare for yourself. Pick the one you like best. Why let strangers on the internet decide for you? ;-)