I’d also suggest the Noble Warrior can be exploited to be a slaughtering machine.
From memory, one of their lists gives extremely good/strong buffs to combat so you can do lots of attacks in a single round with extra damage added on, plus they somewhat cherry-pick some of the better lists from other classes.
Admittedly the background of the NW profession could be highly restrictive to temper this power, but depends on how the GM allows it to be played.
One of our more recent campaigns had four of us playing 2 Noble Warriors, 1 Warrior Mage, and 1 Paladin in a high-powered setting.
The NWs were clearly more effective in combat because of the Haste effects combined with the other buffs they and paladins receive. (And the WM, with some easier access to directed spell items, was quite powerful in its own way, especially as we got to lvl 20+).
So the NW kinda seemed to be similar power to a paladin, but just better. The main difference being the undead/demonic/curse stuff a paladin can do - useless if you’re not facing undead or demons or curses though - and the healing. Healing was a huge strength of the paladin, but any serious damage still needed a proper healer. TBH, all 3 seemed significantly more powerful than most other classes.
So the WM was a bit like a mage/elemental focused version of a fighter/magic-user and the NW seemed like a combat(buff) focused version of a fighter/magic-user (or another way of looking at it could be basically like a much much better monk).
That’s at least how it worked out in the way we played RM for that campaign. YMMV.