On a sales basis and assuming $10B in sales (eventually) the attributed sales is more than 2x for BMY over PFE relative to current sales.
But then on an EV/EBITDA BMY is ~30% more expensive.
Figures quickly eyeballed from Yahoo and may be dated.
ij
It is astonishing what foolish things one can temporarily believe if one thinks too long alone ... where it is often impossible to bring one's ideas to a conclusive test either formal or experimental. J.M. Keynes