I agree with Aeshuura on this one. Even if i often myself have used magic in such ways.
I remember esp. a part where we were in a dungeon with loads of traps and similar dangerous things. The group more or less cleared it all based on "boring" things like "commune with deity", teleport etc. Sure, its cool to use magehand to push the lever from outside the bars of your jail, but to clear traps wich were designed to make us think, to make us wonder what the answer to the riddle was etc with a simple spell..
To me its the boring way out.
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But to stay on topic. My main reason for disliking mages is that most of my experience with them is that they either are full-combat-mode and can blast away what every is thrown at them or they are completly unprepared of the encounter and than whine their ass of based on things like low ac, low hp, targeting spellboks, resistances etc..