Agreed, most of the passives are terrible for one reason or another, except maybe for the ninja passive. The destroyer/gren passive is awesome, but it's OP to the point that most have removed it from their builds so they don't have to deal with complaints.
Speaking from the perspective of invokers, 18% MP Recovery Speed and 170 MP Recovery are pretty weak bonuses. The speed boost should be 10% per level (50% max, at level 5), and the recovery should be 100 per level (500 max at level 5), IMO. (For those who don't understand how MP Recovery works, 500 doesn't mean you recover an extra 500 MP per tick -- it's more like an extra 50 MP per tick.)
Edited by Rimmy, 23 October 2011 - 08:57 AM.