I started driving Michellin tyres (or tires if you prefer) over 30 years ago when I found out that the steel belted radial made snow tires unnecessary in Minnesota winters. Have stuck with them since and I have never had a problem with one of them. Obviously if I did ever exceed the speed limit I would not admit that in writting, but if I did, I would sure feel safe with those tires on my car no matter how heavily loaded. I can't quote the exact web sites, but I have compare them using the web. They generaly come out near the top. I always compare the speed, heat, and traction ratings of competing tires and find the Michelins grades or scores on the tires are usualy higher than the suggested rivals.
One thing to look at is does your mechanic sell one brand of tire as a dealer? I have a dealer or two who are dealers for certain brands and they swear by them.
Michelin has large facilities in NY, SC, OK, Al, most countries around the world, and, of course, France. So what does this mean? Most international countries now manage the currency risks by production in-country. Also minimizes transport cost, etc.
In SC we also have a big German Kar Parts company with a Japanese Kar Partss company right next to it. They muddle around in each others businesses and seem to cooperate rather well with Japanese, German, and American administrators all mixed in together. Guess that means I should only buy Kars with those parts in them.
To summarize - I still believe in Michelin tyres from my experience with them. I suggest them for that reason. I do not make any money from any purchase you make, nor do I derive any income or other benefit from stating that I suggest you buy them.
Since all the responses you get must be evaluated so carefuly for fiancial intesterests, and since you so obviously hold such high regard for your current sources of advice, why bug us with your request for suggestions?