Well, Nifft I especially liked your Arcane Archer class(I tried to use it recently for a PbP game, but the guy was pretty strict)... though we tend to disagree about the word "Inspirer". I think this is a pretty cool prc, yeah probably too strong, but I'm not one to know much about balance. First thing I'd like to say: nothing is safe from powergaming. I have what some may call as "different" playing style, but I tend to not allow anything stronger than Mythril and magical bonuses for "light armor".
Despite you probably being a lot better at this than me, I'll try to help:
-This PrC is obviously a mix of Rogue and Fighter, so it might be a good idea to have the hit die represent that. d8, or even d6, might be better for it. They are hard to hit and you mention the weakness of not being tough, so it just makes more sense.
-It might be too accessible, even if that is what you were going for. Requiring level 5 would be okay probably.
-Bonus feats probably need to go.
-It seems everyone's problem is the Dodge bonus. Understandable I guess. I would make it the "one-target" bonus be half the Duelist's level in the PrC. For the "General" bonus, make it go up one at level 3, 6, and 9(Basically taking the place of the Bonus Feats). The problem is that with this, you don't see the bonus until higher in the PrC. For the "one-target" dodge bonus might wanna start it as with +2 and go from there... +6 at level 10.
-What I think this class is missing is some of the "Duelist" flavor(which I know you are trying to get at). It has the defense part alright, but the offense is not there. Precise strike as is might not be the best idea, but I just thought of something. It wouldn't be a bad idea to allow the Duelist to use Sneak Attack gained from the PrC and only the PrC to use as Precise Strike on the target you currently selected to Dodge from. They still get to use Sneak Attack as normal, but on one target they can get it a lot easier.
Without much foresight here is my version. Take what you want of it. I hope this helped.
[sblock]
Class Benefits:
Hit Die: d8
BAB: as Fighter
Good Save: Reflex
Skills: 4 + Int -- Balance, Bluff, Climb, Concentration, Craft, Diplomacy, Gather Information, Hide, Intimidate, Jump, Knowlege (Local, Nobility), Move Silently, Perform, Profession, Ride, Sense Motive, Swim, Tumble
Special Abilities by Level:
1/ Uncanny Dodge, Elaborate Feint
2/ Dodge +2/+0, Dueling/Sneak Attack +1d6
3/ Dodge +2/+1,
4/ Dodge +3/+1, Quick Thinking +2
5/ Dodge +3/+1, Dueling/Sneak Attack +2d6
6/ Dodge +4/+2,
7/ Dodge +4/+2, Riposte
8/ Dodge +5/+2, Quick Thinking +4
9/ Dodge +5/+3, Dueling/Sneak Attack +3d6
10/ Dodge +6/+3, Acrobatic Evasion, Fool's Luck
Dueling/Sneak Attack: Against the target the Duelist is currently using his Dodge bonus against, he may use his Dueling Attack freely, assuming that target is not immune to Sneak Attack.
If this is too strong: You can lower his hit die to d6. Or You can weaken Riposte to do the following: When an opponent misses, the Duelist can make an attack against his Touch AC. If the Duelist succeeds, that opponent is flat footed for the rest of round. I think Riposte is fine the way it is though... I would focus on the hit die. Another thing one could do is lower the BAB to Medium, which might be a bit harsh.
[/sblock]
Despite you probably being a lot better at this than me, I'll try to help:
-This PrC is obviously a mix of Rogue and Fighter, so it might be a good idea to have the hit die represent that. d8, or even d6, might be better for it. They are hard to hit and you mention the weakness of not being tough, so it just makes more sense.
-It might be too accessible, even if that is what you were going for. Requiring level 5 would be okay probably.
-Bonus feats probably need to go.
-It seems everyone's problem is the Dodge bonus. Understandable I guess. I would make it the "one-target" bonus be half the Duelist's level in the PrC. For the "General" bonus, make it go up one at level 3, 6, and 9(Basically taking the place of the Bonus Feats). The problem is that with this, you don't see the bonus until higher in the PrC. For the "one-target" dodge bonus might wanna start it as with +2 and go from there... +6 at level 10.
-What I think this class is missing is some of the "Duelist" flavor(which I know you are trying to get at). It has the defense part alright, but the offense is not there. Precise strike as is might not be the best idea, but I just thought of something. It wouldn't be a bad idea to allow the Duelist to use Sneak Attack gained from the PrC and only the PrC to use as Precise Strike on the target you currently selected to Dodge from. They still get to use Sneak Attack as normal, but on one target they can get it a lot easier.
Without much foresight here is my version. Take what you want of it. I hope this helped.
[sblock]
Class Benefits:
Hit Die: d8
BAB: as Fighter
Good Save: Reflex
Skills: 4 + Int -- Balance, Bluff, Climb, Concentration, Craft, Diplomacy, Gather Information, Hide, Intimidate, Jump, Knowlege (Local, Nobility), Move Silently, Perform, Profession, Ride, Sense Motive, Swim, Tumble
Special Abilities by Level:
1/ Uncanny Dodge, Elaborate Feint
2/ Dodge +2/+0, Dueling/Sneak Attack +1d6
3/ Dodge +2/+1,
4/ Dodge +3/+1, Quick Thinking +2
5/ Dodge +3/+1, Dueling/Sneak Attack +2d6
6/ Dodge +4/+2,
7/ Dodge +4/+2, Riposte
8/ Dodge +5/+2, Quick Thinking +4
9/ Dodge +5/+3, Dueling/Sneak Attack +3d6
10/ Dodge +6/+3, Acrobatic Evasion, Fool's Luck
Dueling/Sneak Attack: Against the target the Duelist is currently using his Dodge bonus against, he may use his Dueling Attack freely, assuming that target is not immune to Sneak Attack.
If this is too strong: You can lower his hit die to d6. Or You can weaken Riposte to do the following: When an opponent misses, the Duelist can make an attack against his Touch AC. If the Duelist succeeds, that opponent is flat footed for the rest of round. I think Riposte is fine the way it is though... I would focus on the hit die. Another thing one could do is lower the BAB to Medium, which might be a bit harsh.
[/sblock]