Drangleic sword is like claymore for impatient. It's move set is almost identical to it and some royal guard sword or whatsitsname. But I think it's a little bit shorter, a bit heavier, has a little less damage (but better DEX scaling, but is it something anyone would care about?), a bit not as sharp move set (what's with that trembling when you do a poke?) and so on.
Still, it's a viable weapon. I used it for a while but switched to claymore as soon as it was avaible.
Standard weapons have very solid move sets, so it's easy to just pick one you like the most and upgrade it. I mean, look at cleric's starting mace, it destroys enemies.
I got all these boss souls but none of them trade for a weapon that can do more damage than my +2 Drangleic Sword :/
And well duh, of course it does more damage, since it's +2.