I will curse that game to the deepest pits of hell if it matches this game's stealth quality.
What don't you like about Dishonored's stealth? Is it that you feel overpowered?
If so, I agree. But I find the game so immersive that I end up finding myself role-playing the encounters and not killing unnecessarily or overusing certain powers/items. I'd love to mod the game to tweak the difficulty and make the game more challenging for people that don't want to direct the experience themselves (which I totally understand) but since that seems unlikely I've just embraced the game for what it is.
I just find so much to love in Dishonored. There's the perfectly realized core vision, the understated story that gets the job done, the world building through exploration, the open Thief-like level design, the weighty yet agile feel of the player's movement, the dark, stylized art direction, the amazing sound effects, the sandbox nature of the encounters, and the many, many small touches that make you smile. I could go on and on, really.
Like Dark Souls, Dishonored is a breath of fresh air in an industry where every big budget game is designed to be a certain way in look, feel, and design. From what I've read of Thief 4 so far I'm not convinced it will break free of that trend enough to hit the notes I want it to hit.