Here’s a big question with plenty of answers:
Taste is already not very objective. Tastes good, bad or indifferent isn’t very reliable. Some like it hot and others sour and with some qualifiers things can become clearer: 5 chili beans, 3 lemons or 4 little tenderizers.
Can smell be rated? Does Harzer or Limburger cheese smell good or bad? How about garlic and onions? Ginger on your stir fry? Freshly baked muffins? There’s just no way to measure, the only way is to describe how it smells, or supposed to smell if things go wrong.
To judge looks is difficult in the frame of Cook-Like-a-Guy. Most of our efforts go into getting it done and getting the taste right. Presenting it on an oversized square plate, drawing smiley faces with the sauce and top the perfectly rounded rice ball with a mint leaf is just not going to happen. Unless it’s a high maintenance date, then we want to hear all the details, but you’ll have to get your recipe over there ->
Feel and sound would get all five senses engaged. And the sound of fajitas served on a hot iron skillet certainly adds to the atmosphere, but describing how that slice of pizza felt in your hand is clearly over the top.
Then there’s how difficult it is to make and the time how long it takes to prepare. How many ingredients are needed and does it need constant supervision while cooking. We want low scores here for our purposes.
Can the dish be salvaged when something goes wrong during the cooking? What happens if 3 more guests show up? And not to forget, important for the bachelor cook, can the dish be re-heated without much loss. What happens if an ingredient is missing, something not uncommon for the visitors of this site? We either didn’t have it on the shopping list, or we just forgot to take it out of the cabinet when we started.
And here’s one of my favorites: How many utensils do I need to prepare the dish? How much work is it to clean up afterwards. A single pot for stew is great, but knives, cutting boards and ladles count as well.
I haven’t come to a final conclusion, yet. Taste should be in there. You want to hear “Hmmm, that was yummy” or “I didn’t expect you can cook” as well as the scraping noise when they scrape the last pieces from the bowl. The second rating should certainly be how easy it is to make the dish and how low the chance is to create a mess. Two criteria. Sounds good to me so far.