Regarding Multiclassing, a big part of the problem is that just about every person has their own unique idea of what their character "does". Be it a warrior who kills people by throwing tiny daggers through their eyeballs or a mind-control psion who convinces that shopkeeper to give you the shirt literally off his back.
The problem is that not every base class with feat combinations match up to this idea. But a combination of classes might (base, prestige, paragon, whatever).
Variant classes are an option - but they're also a lot of extra work if what you want is simply a fighter mixed with ranger mixed with a dervish... So your guy swings two blades and spins and jumps and stabs people in the throat before doing a cartwheel and slicing another opponent's abdomen.
Can it be done without multiclassing? Sure, if you want to spend the hours making, tweaking, and revising variant classes. But multiclassing with the pre-made classes is far faster - and you have the added benefit of being able to look up what the viewpoints of class combinations are in the realms of the "overpowered" concern.
Me personally? I don't really want to spend hours on my character creation simply revising pre-existing classes if a combination already exists to do what I want... I'd rather spend that time on back-story and other parts of character development.
The problem is that not every base class with feat combinations match up to this idea. But a combination of classes might (base, prestige, paragon, whatever).
Variant classes are an option - but they're also a lot of extra work if what you want is simply a fighter mixed with ranger mixed with a dervish... So your guy swings two blades and spins and jumps and stabs people in the throat before doing a cartwheel and slicing another opponent's abdomen.
Can it be done without multiclassing? Sure, if you want to spend the hours making, tweaking, and revising variant classes. But multiclassing with the pre-made classes is far faster - and you have the added benefit of being able to look up what the viewpoints of class combinations are in the realms of the "overpowered" concern.
Me personally? I don't really want to spend hours on my character creation simply revising pre-existing classes if a combination already exists to do what I want... I'd rather spend that time on back-story and other parts of character development.