Just Another User said:I think the wizard /fighte would be a gimped combination, because while he have the Power he lack the armors that would give him enough AC to enter in melee to use it, the hit points and healing surges to survive that melee and the proficiences to use weapons with enough damage to make those power worthwhile. the wizard fighter in your example, can't use an axe, unless he pay a feat for it. A fighter/wizard could be acceptable, a wizard/fighter need to invest in a lot of feats before to be worth it.
If I'm not missing something, of course.
Well, for one thing, there's no penalty for using a weapon you aren't proficient in, you just don't get an extra bonus to hit with it. We don't know enough about changes to armor to know whether lacking proficiency in it is going to be crippling, but frankly I doubt it.
Besides which, you have to look at what you want the character to accomplish before you build the character. if you want to be a front-line tank who throws magic, then yes, you should be a fighter with wizard training. If, however, you want to be a wizard who can rock the melee combat when a bad guy gets past the defenders and gets in his face, a wizard with fighter training is quite effective.