I had made a large post about how the Sentinels would win in this over the Terminators but as I was about to hit 'Enter' something occured to me. I have never seen the Sentinels use any kind of 'Firepower' other than the laser they use to crack open the hull of a ship. With this in mind my whole thought on it changes. I WAS going to say Sentinels win. But since they attack physically and not with any weapons I would have to say it is tougher.
The Sentinels have more Maneuverability(sc?) then the Terminators. However the Terminators have superior weapons systems. T-800 have superior targeting. The T-1000 would be half way to imposible for a Sentinel to kill since it is Liquid Metal. And the T-X, with its superior design and weapons over all the previos T-Models, would be the biggest challenge.
The T-800 could be swarmed though.. So they would be considered the Grunt soldiers in this.
The T-1000 would be hard to kill but not immpossible. The sentinel lasers on their 'bellys' should be enough heat to damage a T-1000 Liquid Metal systems but also the T-1000 is the superior T-Model in close combat since it creates weapons that could hack/slash the Sentinels.
The T-X is far stronger then the previous models. Higher Durability. Integrated Weapon systems. And has the ability to take over other machines.
It is difficult to make an honest decision based on feats from both sides.
Sentinels have numbers while the T-Models are superior machines over all just fewer. The problem for the Sentinels would be how many could an army of Terminators take out before the Sentinels get within melee range?
If you look to the movies they seem to have an endless supply of Sentinels but the humans still managed to kill hundres, maybe thousands, before they were defeated. But they were humans self targeting and squishy flesh.
It comes to a simple question. Which would win? Numbers or Superior firepower?