Well sort of. Neither of us is particularly well off against DR (though with the extra money from relying on the cleric and wizard for a few spells, my guy could pick up a DR beating weapon or two and just quickdraw them when needed. Honestly though, I expect he'd crank his current weapon a bit more and cover some weaknesses by getting things like a crystal mask of Mind Armor and such so that ability doesn't count in this comparison). Con damage is a hash mark in your column. On the other hand, the ability to power attack for five and still hit as often as your PsiWar ought to come down on the side of my candidate. I'll give your character a slight edge but it's only due to his choice of weapon. Give the fighter a greater magic weaponed +1 (+5) psichokinetic, wounding, parrying, evil outsider bane weapon and that advantage is squarely in the hands of the fighter.
Vs a single incredibly powerful enemy (such as the dragon) if my guy is outmatched I have my dim door to fall back on. If fighting is necissary for some reason then form of doom puts me up into the almost having a fighting chance (sortof, being able to deal a lot of damage before being slaughtered is a chance right?
). If I get off a full powered psionic lions charge while form of doomed, expanded, and with strength of my enemy up then I'll actually have a chance, though still very small.
Actually, for "a chance" I would figure the goal is to survive one or possibly two rounds while absorbing attacks. If you do 100 points of damage to the dragon and then kick the bucket in his retaliation, that's nice but probably not as valuable as eating up 2 rounds of attacks and then kicking the bucket. If you do 200 points of damage and then kick the bucket in his retaliation, that's nice too and is probably as good as eating 2 rounds of attacks but not doing much damage and dying at the end of the second. It's not nearly as good as eating two rounds of attacks, surviving, getting a Heal spell, and jumping back into the fight though.
I'd say Improved Combat Expertise, Elusive Target, Spring Attack, an AC the dragon can actually miss (easily pumpable to an AC the dragon will miss 50% of the time with all his secondary attacks--even if he has multi-attack and that his primary attack will miss pretty regularly too) while retaining the ability to hit the dragon and present a credible threat as well as nearly double your candidate's hp tip this balance in my candidate's favor. That said, Empathic Transfer would really put the hurt on the dragon and the DR from Inertial Barrier would be surprisingly effective.
Also, more things to take into account. The psychic warrior has massive bonuses to spot and listen, also he is immune to figments and glamors (no invis!), immune to mind effecting attacks and like abilities, can move much faster, has force armor so incoporeal touch attacks will have a much harder time, and my guy can go into any environment and be fine (no air? sure. underwater? whatever. plane of fire? bring it.)
Having DR is nice, walking through walls is cool, being able to be undetectable for awhile is also very nice (even tremorsense and the like does not help), quick escape is always a plus, and overall being simply more versitile.
Exchanging out a few items for better choices could up this guys power by quite a bit, I spent a lot of money on pretty fluffy things (strangely enough even the +4 book of str is mostly fluffy
). But, even with how it is now I think that the psychic warrior pretty well wins out hands down.
You also think the PsyWar's 70 points of damage per round is more than 167 and that 90 points of damage per round with Expansion is dramatically more. As I see it, the PsyWar wins in the flexibility department but he seems to be getting rather badly trounced in the dealing and receiving damage departments.
And the fighter can approach the PsyWar in the flexibility department if he gets some buffs from his allies to match the cleric healing all your overchannel damage. (Otherwise, as I calculate, you end up with 16 power points which is not enough to bring you much past 70% of my sample fighter's damage/round.) Regular Mind Blank from the wizard will match your Psionic Mind Blank. Mage Armor will help with his AC vs. incorporeal touch. See Invisibility in the ring of spell storing (cast and immediately replaced with something useful in combat--if he's prepping, there's no reason he can't get the wizard to put See Invis and Alter Self in the ring, cast them both, then get the cleric to put a quickened divine favor in the ring for use in the final combat) helps with spotting. Etc, etc. He's not going to match the PsyWar in flexibility, but he'll come a lot closer.
Also I should note that your PsyWar's answer to nearly every situation was to blow about half his discretionary pps for the day. If the PsyWar is going to deal with a group of weak foes by using Hostile Empathic Transfer, getting cornered by a dragon with dimension door, and sock it to the big bad by blowing through all that's left of his power pool, it sounds like he's run out of pps before he's halfway through. It seems to me that your build really needs to be able to get through the normal, easy battles with amorphous +35 atk, AC 35, 300hp, nothing else worth noting monsters without spending any power points (except maybe a few on healing) if you want to be able to Augmented Expansion+Form of Doom+Maximally channeled Psionic Lion's Charge the gig bad. (And that 44 pp, 2 round combo is the only way you come close to my candidate's damage/round).
I had a big post all written out.. then gone 
