1st clip sounded clearer and more pronounced to me. 
Pero halos wala ngang difference lalo na through home systems. Although this little diff will, more often than not, matter later during the mixing stage. (i.e. sa "gaining" mixing stage pag nagbboost/cut ka na ng frequencies since magiging mas apparent na ang harmonic/freq deviation nila sa isat-isa)
i agree mark. also the slight difference cannot truly be quantified, but if you ask me clip 1 sounds more three dimensional. this difference will later enhance the mix in ways that no amount of eq'ing can achieve.
it is my opinion that if you pile up these slight differences, the resulting effect will greatly contribute to the overall quality, especially the 3 dimensionality of a mix.
it would also be wise, since the 57 is a great all aroud mic, to test the samson on different sources such as guitar cabs, vocals, etc. maybe the rub would be more apparent this way, and might justify the extra cost.
but for home recording use, by all means, go for the samson. getting used to a certain brand and model of equipment is the best way to judge its quality against another. pag nasanay na kasi tenga mo sa isang tunog, it might be easier to point out the difference right off the bat ... especially the differences in clarity and imaging, which usually, are those that are difficult to qualify
