Yeah, my Shield/Rad Tanker is obscene. I could see Shield/Nrg being just a crazy, probably trading some of that AOE for better ST.
Claws/Bio might be in the running for best damage on a scrapper. Maybe not for ST, but just all around. I do agree with the Dark Melee/Shield scrapper though. Just pretty classic and very survivable for a scrap. Only one I have at 50 lol