Corsair said:
I'd say that only really is 100% true for clerics and druids. Sorcerers and bards still have to choose spells, wizards, though they don't have a theoretical limit, have a practical limit based on funds and time.
Agreed.
Corsair said:
1) Lets say you're a 9th level transmutation specialist, with three 5th level spell slots. You could memorize a Baleful Polymorph, a Hold Monster, and am empowered fireball. No matter
what you come up against, you can choose which saving throw you want to target.
You could only memorize these spells if none of them belong to your opposed school

If these spells do not belong to your opposed schools this statement is true.
Corsair said:
A Frenzied Berserker, as dangerous as he is, can't choose to change his method of attack to suit the situation.
A Berserker can choose his way to attack a foe. He can decide:
- to use his rage ability or not.
- to use a feat like power attack or any other feat he has or to use it not
- to try to disarm the opponent
- to try to trip the opponent
- etc..
Corsair said:
2) Look at spells like Tenser's Transformation,
Tenser´s Transformation is a level 6 spell. To cast this spell you have at least a level 11 wizard.
A level 11 fighting class PC has the same BAB as this wizard but the fighting class PC has more HPs, more feats and the equipment (armor, weapons). The wizard looses with this spell his most effective wepon: spells. If somebody dispells the armor spell of this wizard he will be dead meat..
Corsair said:
Shapechange, Divine Power, and the like. Who needs fighters? Clerics and druids can already fight as well as fighters from first level and up, and a wizard with enough preparation has little to worry about from most melee monsters, as long as they can out-maneuver them.
Clerics and druids are good at fighting but not as good as a pure fighter. Spellcasters can boost their abilities but the spells can be dispelled, end at certain time, etc...
Fighters can use many of their abilities all the time.
Corsair said:
3) In the non-combat sense, unless you're constantly running into anti-magic fields, chances are the rogue will become less and less useful, as many of his skills can be replicated by magic. The only advantage the rogue has is that not every wizard will have a wand of Knock (though they should!) so being able to use the skills over and over helps.
Not all skills of a rogue can be duplicated.

A waizard also do not have the spell find traps

A wizard or cleric can not disable a trap or a magical trap. Some traps automatically reset themself if driggered so a wizard can not send summonded creature to disable the trap.

A spellcaster don not have a high spot-, hide or listen-skill.
A rogue can convince an ambassador by a good diplomacy roll that the kingdom does not need to go to war with the kingdom the PCs are staying. A wizard can achieve this goal by casting a spell like dominate person but casting this spell can be very dangerous in this situation. If the spell fails ....
