"Is there a sonic reason to use another program other than Itunes to rip normal redbook CDs?"
Yes. I tunes will rip CDs with errors (even with error correction option set). I use MAX set to CDParanoia algorithm with option "do not allow to skip" and found CDs that cannot be ripped while I tunes still rips them (accepts errors). Max is better IMHO than EAC that I used when I had PC.
Use AIFF or ALAC - it should not make any difference (I use ALAC). Format conversion you can do with MAX (any format to any format).
Yes. I tunes will rip CDs with errors (even with error correction option set). I use MAX set to CDParanoia algorithm with option "do not allow to skip" and found CDs that cannot be ripped while I tunes still rips them (accepts errors). Max is better IMHO than EAC that I used when I had PC.
Use AIFF or ALAC - it should not make any difference (I use ALAC). Format conversion you can do with MAX (any format to any format).