I have been looking at knives made in these steels I am hoping someone could explain the pros and cons of both steels ...
You asked for pros and cons but it looks like what you've got so far is comparisons between the two, and I wondered if you were thinking of other steels as well?
Assuming they're properly made (in particular, properly heat treated, but other parts of the manufacturing process are important too) then when you used them as Mark.177 said you probably wouldn't notice any difference between blades made of these two steels.
Are you thinking of making blades from stock steel? You can heat treat some blade materials at home with relative ease. With these steels, heat treatment is a lot trickier.
They're stainless, which for me is a big win over carbon steels, and they're more expensive (or a
lot more expensive) than something like 1095 or good old O1 which is the next best thing to indestructible if it's kept clean and dry.
I'm a great fan of stainless blades; I personally love the small S30V blade on one of my Leatherman multi-tools which gets used for almost anything, but apart from firewood prep (when I generally use an O1 fixed blade) I probably use 12c27 blades more than anything else. I've never have any trouble with those. 12c27 is 'old school' and perhaps more forgiving if making your own blades from stock.
There are many other steels which would probably perform just as well as those you've asked about. Some of them are more or less identical, for example CPM154 is RWL34 by another name, and 154CM/ATS-34 have practically the same elemental composition but are 'assembled' in a different way. 154CM and ATS-34 have both had chequered manufacturing histories so beware of older blades in those materials. Others like N690/N690Co/440F or VG10 wouldn't be out of place in the discussion and are well regarded.
Elmax can usefully be hardened quite a bit more than some other steels and then it might be harder to sharpen, but to me everything seems to respond well to stropping.
As Dave said, what you want from the steels is important. I tend to think of most stainless steels (3V being a notable exception) as better suited to smaller, finer blades but that's just a personal opinion. The Enzo trapper would fall into that category. Apart from 3V I wouldn't consider using them for something like a big chopper.
Like anything Elmax might not be as tough, if it's taken to the higher hardnesses that it's capable of. I personally would steer clear of very high hardness finishes, but being a Saturday's Child I tend to make my blades work hard for a living.