People tend to think that wizards get poor static defenses/bonus/gear selection and while more powerful in a burst eventually 'run out' of spells, making a fighter more consistent. It comes from a percieved, (but actually irrelevant,) weakness of casters. I think the idea is that mundanes using magic gives you the best of both worlds, unaware that casters ALREADY get the best of both worlds. This consistency argument probably worked as an argument back in the days of yore when a wizard had powerful spells but really had a small number per day at all but the highest levels. And the wizards defensive spells can more than make up for poor defenses/HP and the offensive spells more than make up for his low BAB. Of course, past level 4 or so the wizard probably won't run out of spells and past level 9 or so he never should. It's a ridiculous double-standard that I simply cannot fathom.People tend to think that wizards get poor static defenses/bonus/gear selection and while more powerful in a burst eventually 'run out' of spells, making a fighter more consistent. It's perfectly fine for a caster to use his class feature (spells) to mimic the abilities of other classes, but if another class uses his build resources to mimic the ability to cast spells he's crossed some sort of line. I realize this is mostly, if not entirely, sarcasm but that does seem to be the general consensus.

Dwarf monk feats 5e