I lean towards the P30SK for a number of reasons:
1) more sight options for the P30 series
2) P30 seems to more often hit tip of front sight compared to drive the dot with the P2000
3) P30SK has more traction on grip.
4) P30SK is more adjustable with side panels.
5) P30SK comes with a bigger mag release.
6) P30SK readily available with light LEM.
7) P30SK design makes it less likely to pinch reloading.
8) P30SK mag well seems more forgiving.
9) with finger ledge magazine extension, P30SK offers a full finger grip.
10) P30SK is less expensive.