I'm not a PT guy.
But... until someone with experience with both units can answer (and
with the idea that my poor attempt at an answer will help bump your thread up where someone who actually is actually knowledgeable on this can see it

)...
-- I would report what seems to be a consensus that the venerable 001's converters are not up to the typical sonic quality level of contemporary converters such as on the 002, Mbox, and other manufacturer's devices.
With everything else equal (and when ever is that?

) I'd certainly take the higher rez format on the newer device (the 002)...
I think I'm safe here...
[UPDATE:
KICK ME! I just realized
I'd missed the "DigiMax" part of your thread title... So
IGNORE everything I wrote about the 001's converters (assuming you'd be using the DigiMax's). Dumb azz me. Since I'm really completely ignorant of the DigiMax except what I just scanned on the Sweetwater product page, I'll just slide sideways into the shadows now and hope someone who actually KNOWS something can come in here...

PS.... but, as a
betting man, I've got a cyber-dime sez at least some folks will suggest going with the DigiMax... But, we've determined, I know
nothing of value, here.]
______________
Now... in general, I think you will find considerable disaggreement as to the tradeoffs working at higher SRs. I think almost everyone agrees that 20 or 24 bit over 16 is worth the CPU overhead. Doubling the sample rate, OTOH, would appear -- judging from the debate, if nothing else -- to provide more subtle benefits. But if you've got the power and storage space (and you know you'll be mixing OTB)... I say go for it.