Hiya,
Ok, here's the deal as I see things. Maybe it'll be enough to end any controversy, even the self created kind like we got here.
It's pretty obvious the Weber head isn't the same as any Merker one. All you gotta do is read the many Weber related threads, and all the comments and reviews. As other members have said, the Weber head seems to be unusually well thought out performance wise, and that to me seems to be why it's so popular for so very many people.
Now there's always a few members who like to be the straw that stirs the drink. Personally, I think they're what helps makes things interesting in a forum. The smart move is often NOT rising to the bait presented,
You get what I'm saying here? Defend your point of views, but don't take it as a personal attack.
Martin