As title says, especially on the weekends it seems to me that the mobs are harder to kill and it dont take much irregardless which character I'm on to get killed. Even my one hero Ogden is the first to go and then maybe another hero/henchmen then me. My armor is Standard at Max level and STILL I get killed.
Now the question is does this happen to you as well??
Going in with a full party yes, but poor Ogden is usually the first to go down as I said. But to me its seems the mobs are just souped up to make questing harder on the weekends, and I never had this much trouble during a week day/evening.
what is his health?
Mobs will usually attack the monk (or casters) first, so I usually try to have their health a bit more than any melee characters (and the monks and mm I usually try to have the highest health on).
and I dont believe that anet has days of the week planned into mobs aggressive behaviors.
I usually arrange my heroes with the casters behind the rest and pull mobs, preferably at a place where the war can hold them (corner). If you really have a problem consider taking 2 monks or Ogden and a support rit. But tbh my Ogden can manage most areas alone (sole healer I mean NOT totally alone ^^).
IMO in a full H/H party you should always take 2 dedicated heal/prot monks just to cover for the fact that the AI can be pretty dumb sometimes. There are places where you'd probably need 2 monks anyway, but in general it is worth it to sacrifice a little dps to prevent wipes and not have to worry about it nearly as much.