HHH is the site's most underrated 'pro'. Since he's a man of few words and won't bother to defend himself, I'll defend him.
HHH hosts 'elite' invitational RRs. This is where he grabs all of the aforementioned people and throws them into a Round Robin. His track record on those RRs? Unbelievable. Even in my anonymous RRs you can see how good HHH is. 1st one he tied, 2nd one he won.
You seem to think he's not that good because he loses to bad players sometimes. This is because HHH is known for predicting people's moves outstandingly well. When he loses to a bad player it's either: 1. He had bad luck 2. The bad player wasn't making logical moves, thus HHH had a hard time predicting or 3. HHH just downright didn't focus enough. You wouldn't focus either if you had been playing as long and as much as HHH has.
Compared to Gui, Szew, and Dunga.. I won't go into the long track record, but he's right there with them.
You don't know what you're talking about anyways. It's very doubtful you've played any of the 4 aforementioned players more than 10 times.