Too close to call. Like I said; it appears to me that the products are almost identical except for logos and other markings. I wouldn't be surprised to see that sharkskin was a licensed and rebranded product. When on a dive trip, they stay wet the whole time. When at home, they dry in my drying area in about 1 day. It's basically a hanger in my garage with a nearby electric dehumidifier.
Neoprene wetsuits definitely dry far quicker than sharkskin/lavacore does if that's a big concern for you.
Despite the difficulty in drying them, both products are vastly more comfortable than neoprene. They're also super easy to don/doff without help, thanks to being both stretchy and front zip. I would recommend considering a size smaller than you think you might need because they stretch. I ended up buying the lavacore twice because the first one I bought was really bigger than what I should have purchased.
The sharkskin was purchased as part of a debacle in key largo. Boats were reporting huge jelly spawns at the time, and I had planned on diving in just shorts. None of the shops had a regular dive skin in my size for sale. I bit the bullet and spent the money on a sharkskin. Nothing wrong with the suit, but when all you need is a $50 skin the $250 price hurts. The worst part is that when I got into the water, I didn't see any jellies!