Still a better game than Arkham Origins, man that game fucking sucked. Way to put a stain on an otherwise great series.
Allow me to disagree entirely - Arkham Origins is my favourite Arkham game. I might make a thread on why someday... (Though I did only play it once most of the bugs had been patched out.)
OT: Specifically on the topic of execution moves - Arkham zooms out
when you do a takedown and gives you full control of the camera. This gives you the opportunity to do a quick survey of the battlefield while Bats is immune from being hit. I generally found that far more useful than being able to insta-takedown an individual.
Shadow of Mordor - I wonder. The Nemesis System somewhat relies on Talion dying from time-to-time. It lets you build up a back-and-forth with the orcs that kill you. This feels like a flaw - since the perfect player will miss out on content. The Nemesis System - up to a point - relies on you screwing up the combat.
The combat doesn't encourage you to be perfect, while the Nemesis System doesn't want you to be perfect. Both of these things are flaws, but they sort of work well together.
And... Yikes, Shamus, this is the second time that you've put out an article criticizing Shadow of Mordor immediately after Yahtzee puts out one praising it...