Use an adamantine weapon, problem solved.
So use a true death or demolition crystal as needed as a rogue and you shouldnt have much problem, you can also use scrolls . if we are bringing gear into (your extremely rare by most standards, adamantine weapon) this you must understand that gear progression is an issue in 3.5 due to the fact that the system simply goes to shit if you even attempt a low magic approach (which everyone and their mother seems to want to do, for some absolutely retarded reason and lack of understanding of this particular system) without powering down caster classes. In fact the only balanced approach to 3.5, especially on mid to high level is high fantasy with magical item shops around the corner and unlimited access to stuff in the manual PLUS custom magical items.
I don't recall having particular AC difficulties.
AC 26 as a lvl 14 fighter is rather hard to reach. Asuming elite range and your main attribute at 18 thanks to level increases, which would be the highest possible unless you have racial bonuses, youd have BAB 18, thats a 40% chance to miss with your first attack, a 65% chance to miss on your second attack and a 90% chance to miss on your third attack. Not to mention the immunity to critical hits that leaves one of the biggest contributors to burst damage, the improved critical feat, useless.
The stone golem has BAB +18, while the warrior outfitted with a full plate armor would have AC 18, 20 if he uses his second highest attribute on dexterity, which i wouldnt, constitution and intelligence are more important for most fighters due to hp and feat req respectively. So the golem would have a 90%-95% chance to hit with both strikes strike.
Damage calculations are also a bit onesided. as the golem does 2d10+9, while the vanilla fighter does at most 2d6+8, without using power attack (which he cant really afford because of low chance to hit.
Mathematically he cant beat a creature of his hown HD that as a encounter is 3 levels below him without using magical gear, so he is in actually worst standing than the rogue, that can actually avoid the encounter easily or lure it into traps of his own making, etc.
The truth of 3.5 is that its complete shit from a design point of view, but that shit desing at least allows for variety and interesting situations, which cannot be said of sawyers shit design. To understand the system a bit more take a look at this.
http://www.brilliantgameologists.com/boards/?topic=1002.0
Classes per tier, to see how much difference there is in power and possibilities between each class. You will find that rogues, with their "shit" sneak attacks that dont apply to some monster types still outperform half the PHB classes and really, half the classes of the system in general. A rogue is about as sneak attack centric as a druid is reliant on his shapeshift feature, or a rangers animal companion, its a very nice thing on the side, but not what the class is about at all, tho most individuals combat focused tunnel vision can fool them into thinking it is.
They knew it was a problem, so they added the epic precision feat (allowing for nerfed sneak attacks on creatures immune) and the various Ruin weapons that allowed for nerfed crits.
They didnt bring a super new idea to the game when they did that, as i told you before, there were means of overcoming those immunities, and actually empowered sneak attacks in the system. Being able to bend or break rules with magical items is what makes them magical roguey, and not pointless garbage like weve seen everyone complaining about in poe, save 2-3 exceptions that i bet have been nerfed to oblivion by now.
Im not defending 3.5 at all btw, just attacking your banal shit boring philosophies because they are actually worst than 3.5, and i REALLY despise 3.5.
In practice it turns out having creatures ignore the main mechanic of a class is mad gay, even in PnP. MotB is good example of that, it was chockfull of such monsters and you're fucked if you rolled a rogue (good thing it also had clericzilla as a companion).
Sure, except you were fucked if you rolled many things, you could certainly build a fucking useless character, but the game gave you companions that could carry you, so meh.
