I've run a few onehander alts (making my third), I've used the following weapons: Side sword (due to awesome looks, don't care about the fact that it's slightly up), and Italian falchion.
My thoughts on the stabs:
- Side sword requires you to move slightly backwards when stabbing which will cause a negative speed bonus and lower damage which in return will give it a chance to glance, if you move backwards then slightly forward with your sidesword it'll probably glance aswell or miss, depending on how your opponent moves.
- Italian falchion allows you to stab anywhere, even facehug range, in a way the short reach is an advantage if you use it right, however this weapon normally isn't good at all due to having to enter kickdistance in order to land a hit.
Generally I do think stabs need a slight buff in when they don't glance, as if you don't hit with the exact tip of the weapon you'll both glance and be stunned. (but onehand stab is still my favorite onehander anim due to looking awesome, and most people fail to block it)