I stand by the opinion, that based on modus operandi, the deep throat cut and the fact that the womb appears to have been the target in at least two of the murders, we can only be quite sure of attributing three victims to the Ripper:
Nichols, Chapman and Eddowes.
The rest must remain open to debate, although it could very well turn out in the end that all five or more could be Ripper victims.
All the best
__________________ The Swedes are the Men that Will not Be Blamed for Nothing
Location: McWopetaz Metroplex, Illinois U. S. of A.
Because of the nature of the attacks I think it is well above 50-50 for each of the C5. For Millwood, Smith, Tabram and McKenzie, it would be under 50-50 but, taken as "the field", I'd think it would be likely that he killed at least one of them. There's also a pretty good chance he may have killed at least one other that we have not even considered so his tally would likely be about 7 as I'd estimate it. Of course there's no way to prove anything but you'd be hard pressed to say that he didn't kill at least Chapman and Eddowes so 2-10.
This my opinion and to the best of my knowledge, that is, if I'm not joking.