I'll go with a second crash... But that's just ME !

What do YOU think ? What do YOU need for the music YOU play ? I think that's the real questions...

JMHO.

Its really what you personally like the most and need the most. Both are reputable cymbal manufacturers who churn out good products. Good luck with it and above all, enjoy!

If you only have 1 crash, and its a 16, I would recommend getting another crash.  Just so you know, a splash and crash arent even close to each other in what their purpose is.  Youll (or whoever listens to you playing) get tired of using a splash as a crash-
as far as pAisTe vs. Meinl, get whatever sounds good to you-

Well, I'd choose both, 'cause I love Paiste as much as Meinl. Both companies make pretty kick ass sounding pieces of metal. But I think that second crash would be far better choice anyway..........

You already have a splash, so I'd for sure go for the extra crash. If you play rock, you will definitely need more crashing power than a lone 16 incher can provide. A splash is great for a nice small effect here and there, but your crashes make up the main body of your cymbal arsenal; most medium-sized all-around cymbal setups have several.