for editing you'd be best off converting to one codec.
one question is do you intend to finish or master your show in FCP or not,
or use FCP to edit, then something else to finish.
if you're going to edit & finish in FCP, then probably best to convert to ProResHQ
but whatever you do, decide on a FRAME RATE before you start.
for animation, i'd go with 24fps of 23.976
nick