I purchased a pack of prime sirloin steaks from Costco, and decided to try different marinades on them to see how they compared.
I cooked all of the steaks the same way. I heated a pan, rubbed fat from the steak across the pan, fried covered over medium heat for about 12-15 minutes, flipping every 2-4 minutes, and then finished it by pouring sherry on it and frying it uncovered for another 5-7 minutes, flipping a few more times.
This is an easy way to fry up a steak without having to pay attention to it, and the steak ends up medium-rare, which is how Carol prefers it.
Three of them ended up all being similar to how my steaks normally are. Tasty, but nothing spectacular to recommend them. The sesame seed oil one, however, was fabulous. A salty-sweet sesame flavor crusted the outside and permeated deep into the meat. Carol also thought that it stood out as the clear winner.