When comparing ZSNES vs Batman: Arkham Asylum, the Slant community recommends ZSNES for most people. In the question“What are the best low-spec PC games?” ZSNES is ranked 61st while Batman: Arkham Asylum is ranked 65th. The most important reason people chose ZSNES is:
ZSNES has been in development since the 90's, and in that time has been fixed to run the vast majority of SNES games smoothly. Due to it's "accuracy", it can run roms that most other emulators would break. Not because the emulation is broken, but because the roms are broken.
Specs
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Pros
Pro "Compatible" with most games
ZSNES has been in development since the 90's, and in that time has been fixed to run the vast majority of SNES games smoothly.
Due to it's "accuracy", it can run roms that most other emulators would break. Not because the emulation is broken, but because the roms are broken.
Pro Fast playback of ROMs
ZSNES is hand-optimized for x86, so it will run incredibly smoothly even on older computers.
Pro Built-in video capture
Gameplay can be recorded and saved as both raw or lossy files. Quality settings can be tweaked in zmovie.cfg file.
Pro Games can be saved at any point
Pro Multiplayer support
Games can be played with other people over TCP/IP network.
Pro Built-in support for cheat codes
ZSNES supports Game Genie, Pro Action Replay, and GoldFinger cheat codes.
Pro Built-in audio capture
Game audio can be saved to a .spc file.
Pro Can speed-up and rewind games
Pro Freeflow combat pioneer
Arkham Asylum is the first game to bring us freeflow brawler melee combat in its full glory. It invented the combat genre where you fight a multitude of enemies who take turns attacking you, while the player has a basic attack, a parry+counter and a combat roll. Getting multiple hits in on enemies builds up a combo streak that makes batman stronger. This streak is reset by getting hit by an enemy. Other games, like Assassin's Creed, had superficially similar combat systems, but not as optimized as this and they did not feature hit/combo streaks. Arkham Asylum's freeflow combat system is very suitable to be played with controllers.
Pro Fun stealth & gadgets
Remaining stealthy and getting stealth takedowns is important in Arkham Asylum's gameplay. Arkham Asylum gives the player a relatively large number of different gadgets to use for different combat purposes, such as ranged takedowns, cutting ropes, diverting enemies' attention, blasting through doors, traversing longer distances and hacking.
Cons
Con Laughably out of date
Not only was it abandoned over 10 years ago, the strides that other emulators have made in the same time is astounding.
Con Inaccurate compared to competition
ZSNES sacrifices emulation accuracy for speed (relative to e.g. Higan emulator). Sound emulation is a particularly large weakness.
Con Abandoned
While no official statement on discontinuing the software was made, last progress update was posted in 2007 and now seems highly unlikely that any further updates should be expected.
Con Dark atmosphere
You won't realize how many shades of black exist until you've played an Arkham game. It's always dark outside, so to people who like daylight and colors in their games, this might get a bit dull after a while.