Well, first and foremost, Arthur Jones did put multiple sets of identical twins on the same routines for set periods of time. In most cases, the expected occured, the twins responded identically. However, in a few of the cases, the twins responded very differently. Jones was at a complete loss to explain this, as science says that the two are genetically identical. Very interesting to say the least.
Now, if we assume they would both respond identically to a given exercise, and all other factors were removed, let us look at the 2 scenarios. Ok, the 1st routine works the chest, shoulders, upper back, biceps, triceps, and the abs. The second routine works the chest, shoulders, upper back, biceps, triceps, and the abs. The incline presses, arguably, may hit the chest a little differently than the barbell bench, so you may see a tad different development there. The laterals place more specific stress on the lateral delts, so you may see a tad of difference there. Not much difference between the 2 types of rows, curls, or tricep exercises. The abs may be hit a bit differently with the 2 exercises, so there may be some difference there. In the end, you may have some variance in the physiques, but not much.
Another way to look at this bait, errr....I mean argument, is to compare what has happened in my own 14 years of training. I have performed just about every exercise (not all, but most) over the years, and yet even when using different movements I never noticed any real difference in my physique other than getting bigger overall. I never noticed a significant difference in my overall shape (of course, I always worked all of the major muscle groups regardless of the specific exercises chosen). Once again I will also use the Arnold example, if specific exercises significantly altered shape, why could Arnold never get his left biceps to peak like his right? In addition, if you look at all of Arnold's pics over the years, why did his basic shape never really change much? he certainly experimented with various exercises over the years. Yet, he really only got bigger overall, not radically changed in shape.