Organising soundtrack data

[darkthunder84]

Hey guys

I am in the process of encoding my entire collection in iTunes, using Apple Lossless Format.

I have reached a dilemma though:

I want to have the most complete and accurate information in each of these 3 fields (Track title, artist, and album title).

Under "Artist", what would you guys put where a track has been credited as having both a composer AND arranger? Would you put down the COMPOSER, or the ARRANGER as being the artist, or BOTH?

And also, where a performing artist is concerned (For example Mary Elizabeth McGlynn on numerous Akira Yamaoka tracks), would you bother mentioning him/her in the track title or artist? And if so, how? (Eg: O.R.T. feat. Mary Elizabeth McGlynn)

lol, I know this all sounds really obsessive, but I'm just curious as to what others have done

Thanks for your inputs!