You don't think Aragorn, Gimli, Legolas, and Boromir managed to kill a hundred orcs at the climax of FotR? Remember Aragorn raising a sword-salute at the oncoming orc horde right before plunging into them? Looked pretty buff to me.
Did you see the extended edition DVD or RotK? Legolas and Gimli compare scores on how many orcs they killed. It was pretty close to 100. I'll bet Aragorn put them over the top.
Still, I think I know what you mean. I love larger-than-life fight scenes, but in D&D characters can take their abilities for granted a bit too easily. I remember one evening a half-dozen guards armed with crossbows came into a tavern to accost a couple of my PC's. The PC's flipped up a table to use as cover, and with the guards readying an action to fire on them if they made a break for it, for a moment they seemed at a loss for what to do now that they were pinned in. One was beginning to ask me how it would work if they both grabbed an end of the table and rushed the guards. Then the other just decided "screw it, I have hit points to burn", and stood up, blithely absorbed a bolt or two, then proceeded to hew into the bad guys. To this day I'm not absolutely sure if that was cool or lame.