I have had a Camaro Blacktec 1.5MM full suit that I have been using for the last few years and I decided to order the Stokes 3/4 (covers the knees) this year. Yesterday I was skiing in 53* water and I used each suit during my two sets.
The biggest difference between the two was how warm I felt. The Blacktec kept me nice and comfy. The Stokes, which is about the same thickness, did not keep me as comfortable and I was on the edge of being uncomfortable. The downside to the Camaro is it's durability. Even with a lot of careful handling I still have small nicks and tears in the fabric. The Stokes is much more durable. I prefer the Stokes in a little warmer water because of its durability. As far as cold water comfort goes you can't beat the Camaro. The Stokes seemed to let a little less water in compared to the Camaro but part of that might be due to the age of the Camaro suit.
You can't go wrong with either one. Even though you get wet in the Camaro I prefer that to a baggy drysuit that makes you feel like you wearing a parachute.