Sundering OR Barbed upgrade for sword?

I am at a stage where I have a good sword and money to burn on upgrading it. I have a sundering hilt 10/10 and a Barbed hilt. These are the only ones I am willing to put on my sword as I find furious hilt and zealous/vampiric hilt a bit of a waste (degeneration of hp/mana)
I understand that using the sundering hilt 10/10 will give you a 1 in 10 hit with 10% armour penetration, whilst the barbed hilt will give you an uncoditional prolonged bleeding time on a foe.
What I am wondering is: which one in you opinion is better for a sword? The barbed or sundering 10/10 hilt? And by how long does the barbed hilt increase the bleeding duration on foe?
Thanks for ANY input.

I personally wouldnt use the barbed upgrade. I have found that 21 seconds of bleeding on foe at sword level 12 is more than enough. That is, I hit the monster with a new bleeding attack long before the bleeding of the first hit stops.

Well, it depends on how you play. If you playing PvP i would use the barbed upgrade so if anyone runs away from you , you can kill him bye bleeding !

But by how much does the barbed hilt increase the bleeding duration? Would it be around extra 4 seconds? :/

I'd go with zealous.

or if you have a 3:1 vampiric, go with that.

But if you must use either barbed or sundering, use barbed. Sundering gives you the armor penetration equivalent of 1 attribute of strength, i.e. almost none.

If your talking about PvP then any team worth its salt will have good condition removal so the prolonged bleeding will mean nothing.

Looking at sundering as giving you 1% AP per hit is not quite the right way of looking at it, it isn't for duration damage, it is (in my experience) to give a little extra spike damage. Also comparing it to Strength is a little skewed as strength only comes into effect on skills.

I agree with Magus...I'd go with a 3:1 vampiric...you'll be gaining more health than you'll be losing.