I am a fan of both. I always like the nice thick SS one on my gasser but I also really like the hanger thin one on my charcoal WGA. I get a lot of flavor and access to the flames with the wire one. You always see thin ones on smokers. I once saw someone selling a WGA with a cast iron grate and kind of laughed as it probably weighed in at 2x the weight of the grill. Is there a link to this Meathead thing?
I'll see if I can find the quote in the book. His book is good, but he's not the God of BBQ (Still looking for that book smh).