There is no right or wrong answer. Both are excellent in their own way. I have/had P2000, P2000sk in all three calibers and P30sk pistols. I bought my P30sk LE edition early when they first came out. In my opinion anyone that says they are the same probably hasn't had much one on one time with both.
The P30sk comes standard as V1 and the P2000/P2000sk comes standard as V2. For the record, V2 is my preference for a carry pistol. Yeah, I could have simply changed out the springs but didn't want to. So right out of the box there is a marked difference and I wanted my P30sk and P2000/P2000sk triggers to be identical. The ergonomic P30sk grip panels and back straps is a big advantage over the P2000sk in that it fits more hand sizes. With the largest side panels the P30sk is slightly wider. The P30sk has more aggressive looking slide serrations than does the P2000sk. The P2000/P2000sk is sleeker looking. The P30sk comes only in 9mm while the P2000/P2000sk is much more versatile in all three calibers. The P30sk requires a minute modification to the P2000sk magazine base pads if you want to use them for a "pinky" rest.
I liked the V1 LEM P30sk and enjoyed shooting it. But I just preferred my P2000sk pistols a little more so my P30sk was sold...for more than I had into it.