Cool (???) list! I have a few other "hots" and would be interested in where you would rank them.
Your preferred heat levels are so much higher than mine that I'll probably never even try the mildest of the sauces that you like to use. Here's a useful list ranking peppers and pepper sauces by Scoville units:
Scoville Scale. Almost every pepper and pepper sauce that you or I have mentioned is on the list. To me, Frank's Red Hot sauce is completely useful as a hot sauce but it's WAY down on the list.
These days, I
buy all my non-liquid spices and herbs from only one place. The variety is fantastic, the quality is excellent and the prices are very good, particularly when you wait for temporary discounts on specific items that you want:
Spices and Seasonings at Wholesale Prices - Shop My Spice Sage
The pepper powder that I've really taken a liking to is this Chili de Arbol, which the site says is around 30,000 Scoville units.
Spices and Seasonings at Wholesale Prices - Shop My Spice Sage.
I think that the brown chipotle powder I tried recently may well be a little hotter, but to me it's not as tasty as the Chili de Arbol, which I do use fairly liberally in or on just about anything. (Same with Frank's Red Hot sauce and Trappey's Red Devil sauce... they add not just heat but a lot of flavor and I'll use 10 to 15 good shakes off the bottle on a sandwich, burrito or a couple of eggs).
Methinks you're right about wasabi being horseradish and food coloring. I selected wasabi powder as my free sample with an order from the above source. When I got it, the packet listed horseradish as the only ingredient, so when I'd finished off the sample I ordered horseradish powder instead because it's lower in price. That's all fine and good, but the green powder that was in the "wasabi" packet had tasted like what I've come to think of as wasabi taste (even if I've never had real wasabi), while the off-white horseradish powder tastes like horseradish (which I love)..... insert shrugging shoulders here. I read an article, on Huffington Post I think. It said that virtually no one in the US has ever had wasabi, that even in Japan, what is served as wasabi is actually horseradish, and that the chance of encountering actual wasabi is remote, even in the best sushi bars and restaurants in Japan.
The hottest "wasabi" I've ever had comes in packets inside plastic trays of supermarket sushi from Food Lion, a chain in this part of the country.
Edit: real wasabi isn't quite as rare as I thought I had read. I just reread the article I had read a while back:
Think You've Been Eating Wasabi All This Time? Think Again. | HuffPost. However, a perfunctory Google search led me to believe that real wasabi is still hard to find and requires preparation using actual wasabi root just before eating.