I'm playing a genasi warlord/ swordmage. It's not overpowered, but our group really needs the versatility. Our other defender player has an unpredictable work schedule and can't always be there on game night, so I never know when I'll be called upon to be the tank. We have no other leader classes at all, so I am it for healing too (I've taken a skill-based utility power for a second heal, and fearless rescue as my daily).
This is the kind of situation I think hybrids were designed for, not as a tool kit for optimizers. (Not that there's anything wrong with optimizers...I have waiting in the wings a ranger/rogue whose only standard-action attacks are at-wills; every encounter and daily is minor or immediate).
The fact remains, hybrids are
more difficult to build.
That means, by its very nature, they require more optimising.
The arguments vs. hybrids being weak in this thread are of the "yeah, but the average player will suck with 'em" variety .. and frankly, I agree with that sentiment.
'cos when hybrids are concerned, there's
more room for error.
Plus, all my hybrid builds tend to have complex "monster behaviour manipulating" combos.
A lot of players don't even know how this sort of thing works, 'cos their experience with combat has heretofore been just, "how to get a couple of bonuses and hit that guy." and "I'm bloodied. Heal me please."
Just a very basic "starting combat" combo is just with a plain fighter.
Shielded sides + come and get it.
1) It changes the board significantly, to the party's advantage.
2) Fighter can't be flanked and gets +2 AC/ref ... that is the equivalent of -20% probability of being hit vs 3+ attacks.
Now, ignoring the obvious advantage of having foes marked by the fighter, this very simple combo will pre-emptively negate hits.
Negating hits is pre-emptive healing.
Clumped up enemies in convenient flanking positions = more damage dealt to them, which means they die faster, which means they attack less.
Monsters attacking less is pre-emptive healing.
That sort of combo is more efficient at winning combats than dishing out a few extra points of damage with a bloodclaw weapon.