Still a bit of a novice here. I've found I love the shrimp tempura at Fishbone's in Grosse Point (near Sailchaser's house). But, my favorite is the Magaro at Noble Fish in Clawson. It's not even a restaurant, but a Japanese fish market that happens to have a sushi counter in the back & 2 or 3 (2-man) tables. Apparently Noble Fish has won some kind of best sushi in Michgan award more than once. If you're ever in the area...
http://www.noblefish.com/