Been out of it for a few days, so excuse me if I am lagging.
Quasqueton said:
Change the name "fighter" to samurai, knight, cavalier, legionaire, etc. and you can have a new feel with the same mechanics. Call your character an "elementalist", say he gets his powers from a connection with the elemental planes, choose spells based on the elements, and don't tell your fellow Players that the actual class is sorcerer.
This is especially true with mutliclassing. Think "pirate" instead of "rogue/fighter". Or "skald" instead of "bard/barbarian".
I think there are two sides to this coin.
One side is "Don't be afraid to multiclass if it will get you what you want." I imagine that there are many more multiclassed characters in the world than the rules like to pretend.
The other side is "if you want to emphsize a role in your game, make a class for it." Period. (Class can be core or prestige, depending on how fundamental you want the class to be in your game.) Sure, you can
sometimes make things with other classes, but some players don't think like that, and sometimes getting just what you want is cumbersome if possible. Even if you can make differenct concepts with the building blocks, making a prestige class that is the culmination of the building blocks can give the PCs an advancement path or give them ideas how to advance their character.
Sure, if you hardly ever run games in a faux East Asian setting, describing samurai as "figher/aristocrats" will probably suffice. But if you want to run a campaign with players playing these characters, I really think it behooves you to create a samurai class that is an attractive alterntative to the fighter and fits the bill for your game... few players are going to voluntarily take on the punishment of multiclassing with an NPC class.
Similar to this, Celebrim really thinks that making feats is the "answer" to prestige classes. Eh, not really. There are books and books with feats, but feats have a very scattered feel about them. It has been my experience tha players don't embrace new feats as readily as new classes. If they depart from the core feats at all, it is very peicemeal. Players are generally NOT, in my experience, going to want to play a kitbash shadowdancer.
Prestige classes have enduring popularity despite criticisms from a vocal minority precisely because they assemble all the peices that are needed to make up a (hopefully interesting) concept instead of making you do the footwork to assemble it yourself.