My top 4 are:
1: Thief 2 Metal Age. Great open world levels with plenty of things to do in them although the AI seem to miss you if you stand in their face but in a dark corner...
2: Deus Ex. Much like thief, open levels and lots of choice.
3: Mark of the ninja. It has it's flaws. Sometimes feels a bit trial and error but works well.
Very good at the core with easy to notice noise, if your hidden and score for repeatability
4: Batman Arkham Asylum( I haven't played Arkham city) Good stealth faster paced and you can still fight back if you screw up.
1: Thief 2 Metal Age. Great open world levels with plenty of things to do in them although the AI seem to miss you if you stand in their face but in a dark corner...
2: Deus Ex. Much like thief, open levels and lots of choice.
3: Mark of the ninja. It has it's flaws. Sometimes feels a bit trial and error but works well.
Very good at the core with easy to notice noise, if your hidden and score for repeatability
4: Batman Arkham Asylum( I haven't played Arkham city) Good stealth faster paced and you can still fight back if you screw up.