Tenderloin (sometimes called filet mignon) is the king of steaks. It's lean, tender, can add any wanted flavor to it and it will absorb it all, and you can cut it with a butter knife. This is expensive though so only cook this once in a while.
Norwegian Klub is a dish my mother made when we were growing up. I like to have it topped with bacon grease and my wife likes them brushed with butter and sprinkled with sugar. Sliced and fried the next day these are a hearty breakfast meal