Great review! I appreciate your comments about specific details and overall performance for each top. Nice pic of you in the World Championships also.
I have a few comments to add.
I have both of these tops, a black Rogue and a catsup red Supernova. I have used each extensively. I'm 5'10" 165 also, but wear an XL large in the Rogue and a L in the Supernova. The Rogue fits tighter in the shoulders, and the L Rogue is far too restrictive. Definitely try on the different sizes of each top.
Here are a couple of other considerations about the Supernova. While I do appreciate the Velcro wrist cuffs, these fill up with water and have to be drained every so often, which is a pain in the ass. Sweet needs to add some sort of drain hole. Additionally, and more significantly, the seams on the outer neoprene neck cover came apart on my Supernova. Sweet needs to glue, stitch, AND seam seal the outer neck covering. The neoprene neck cover delaminated after only a few months of paddling, with the neoprene held together by only a few threads. BUT Sweet warrantied the entire top, giving me a brand new one with no questions asked. Sweet's warranty service was top shelf.
In the end I'd buy both brands again.