Blink too regenerates, but it is not quite permanent invisiblity levels of bullshit and there are not as many other aids, and you're forced to first person.
"Energy regen only works within current cell."
Of course. This is irrelevant. It still regenerates and at max cloak level drain is far less.
"Invisibility is very power hungry and takedown always eats an entire cell's worth of energy."
See above. Cloak max level, and regen rate max level. I should know, I've completed the game foxy pacifist entirely invisible, with moments of hiding in cover whilst it regenerates and stuffing candy bars to cut down on the number of times hiding to regenerate is necessary.
"You can't keep cloaking while punching people in the face without consumables, it's unsustainable."
Punching people is not a necessity, just run right past them invisible.
"Sticky cover is gamebreaking, but less so than ability to observe the environment undetected you get by using overhead routes in Dishonored."
Both as bad as each other. Cover is not always available, nor is overhead routes.
"Radar is of questionable utility as it only tracks target that have been acquired visually"
Questionable utility he says.
"OTOH blink is essentially free if you allow it to regen and it regens quickly, allowing for constant invisibility in conjunction with omnipresent overhead stealth routes."
It's range is more limited than sprinting with max level cloak & max level running speed.
"Both games have see through walls as purchaseable upgrades, Dishonored's version even projects real time 3D sight cone"
True.
Anyway, arguing which game is more popamole than the other is p. hilarious.