Let's lay down a few basics here, no weapon in damage factor should ever be thought of as naked opponent.
Every weapon that ddo (dnd) uses that have a real life counterpart or inspiration (and that's most of them) were designed to work against the armors they faced at that time in history, as armors developed and changed the weaponry changed along to adapt.... the prototypical meaning of arms race.
Dnd from what I remember partialy based its numbers raitings for a lot of weapons on that system, not what would this do to a naked guy, or else arquebus would be like 2d20 x8 or something like that. This isn't always accurate, or sometimes the way they looked at it was off, but in general to what I've read on the subject over the years that's how it seems to have fallen out back when, with people looking over it and changing things here and there over the years an iterations.
That being said, dnd weapons represent thousands of years of human military history all slammed together into one setting. Some dnd weapons are plain out and out inferior to other designs used in the same game, yet they have relatively alike weapon ratings. Then you get into the actual real life variants that are represented in each weapon... long sword for example, seems to represent the shorter ME swords, but through the Viking variation in there and maybe a few others, each were slightly different (though they did at least give variation to the hand and a half *bastard* sword). Would you like to figure out which one of those swords did the most damage to some naked guy versus each other..... probably not.
AS for ranged versus mele, longbowmen were in a very high demand for a very good reason for a long period of time, and as kind of referenced in an earlier post the crossbow was attempted to be outlawed by the pope (though the reasons behind this were massively political and corrupt as a lot of the politically appointed popes of the era were *I'm not trying to start any religious arguments here, just stating what was going on at the time that a lot of papal apointments for a good long while were nothing but political games and political power and virtually jack to do with the religion itself, sorry don't yell at me go look it up*) which is something rather almost unique in history. They were to powerful and to easy to use.... would you like to continue your argument????
Military history is something that is deep and complex in most aspects (political, religious, strategic, and yes in weaponry) and dnd shoved a lot of it together under one roof, so there will always be things that will always not make sense when looking at it from only one aspect. You seem to wish to look at it from up close an personal, when its designed to be looked at from the futher vantage point, get to close and you loose the big picture.
If you wanna star getting into weapon numbers and such, well then I'd advise you to look up a few of the people who cross around the forums who are better versed in this stuff than I am (im more a mythology buff than a weaponry guy, though I know enough to spout a few right answers).
think what you will op, but don't get lost in the shuffle of rl versus the impact of a games rules, magic can change a whole lot of things in stuff like this once that factor starts coming in. Oh yes and also, in the end, as per an old playes handbook, it said upfront that this is ONLY A GUIDE, and in the end the gms word is law.....