If you are for sure taking one or the other, I would do the first one if I were you. As the other reply mentioned, your potential upside is much higher with the first trade. Whether or not those three players can actually perform is a separate question.
Lastly, why would you not keep Vrbata? I would rather keep Skinner as a C, and make Vrbata a RW while dropping Krejci. But, that's just me.