Arcane preparation?
He he..Nice feat generally if you consider that allows you poor-minded meat-wands to cast spells as we do..
I haven't heard or seen many of you(Sorcerers) choosing this feat thought(after all you don't get that many feats,don't you?).
You also said that we need to be prepared to do any harm in any situation?(For gods sake what kind of spells do you think a wizard prepares in any situation in any given day?).
And something last.In a duel between a wizard and a sorcerer the wizard using the Reactive Counterspell feat(Magic of faerun) can easily dodge any spell the sorcerer will throw(assuming the second will win the initiative).
Sure,your sorcerer can take this feat but he will have to sacrifice other feats that suit better at his pathetic inferiority.(and he does not get that many,doesn't he?).
Reactive Counterspell [Generall]
Prerequisites:Improved counter spell,Improved initiative
Benefit:Once per round,you can counterspell an opponent's spell even if you have not readied an action to do so.This counterspell action takes the place of your regular action for the round (and which is the only class that can cast two spells in a single round throught quicken spell?)

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The Wizard
Misty morning, clouds in the sky
Without warning, the wizard walks by
Casting his shadow, weaving his spell
Funny clothes, tinkling bell
Never talking
Just keeps walking
Spreading his magic
Evil power disappears
Demons worry when the wizard is near
He turns tears into joy
Everyone's happy when the wizard walks by
Never talking
Just keeps walking
Spreading his magic
Sun is shining, clouds have gone by
All the people give a happy sigh
He has passed by, giving his sign
Left all the people feeling so fine
Never talking
Just keeps walking
Spreading his magic ...
Black Sabbath