Jack the ripper VS Zodiac

Well many of you won't know who these two are? These are two of the most notorious mass murderers ever. They were evil legends of their times. One of them terrorized the city of London while the other one made the government put a cerfuw in whole state (San Fransisco). But still we need to know who was above all. Well there are many other serial killers who have murdered people thousand times more than these two but the brutality of these two and the fact that till date there is not a police or a detective agency who were able to solve their cases. The identities and whereabouts of these two are still unknown to this world. Lets put a little light on their masterpieces.
Jack the ripper, this man killed more than 5 women in London, during late 1888, all of them hookers, but the fact doesnot allow you to kill them. The name ripper was given because bodies of all the five hookers were found shreded to pieces, internal organs cut out, as if they were hunted by a savage animal.
The condition of those bodies couldnot be watched even by the people of the strongest stomachs. The only clue was the remains of grapes eaten by the hookers (which is also the trademark of JACK).Also it is said to be a work of freemasons.
Now the Zodiac(1969-1974), well this killer claims more than he killed. The word "Zodiac" means
a circle or round which is also the
trademark. Believe it or not according to the investigators both "Name" and "Trademark" was stolen from a watch company or the movie "The Most Dangerous Animal". Well he did kill 5 people and injured 1 but he claimsl 37 other murders too. But he lacks the brutality of "Jack the ripper". So in this aspect he surpasses "Zodiac".
The "Case of Zodiac" is still open for San Fransico Police Dept.
Other than brutality the difference lies in the tools they use to make their mark and terror in this World. Films have been made, books have been written but the identities of both these killing legends are unknown and will remain that way forever.