Well the exposure and over all detail clarity is better in this but the drop is cooler in the other one (including what you see in it). :) Tough choice to say which one is the better. Great subject at any rate.
interesting how the focus is not on the drop, its interesting. you could crop just a little off the top, and theres some really weird noise in the bokeh, i think i may like this one more than the last, the background is less distracting, and theres more details. good work, you're getting good with that macro
i like the double reflections in the drop, though they could be sharper... the other drop looks better but i like the reflection in this one much more!