Leopard VS Vista

Leopard	Vista	Comments / notes
UI
Accessibility	Integrated Braille input / output, voice synthesis, high contrast interface, etc.	Voice synthesis, high contrast interface, etc.
Fancy file browsing	Cover Flow, Quick Look	Preview pane, extra large icon view
Find windows	Exposé	Flip 3D
Indexed search †	Spotlight	Instant Search, Search Folders
Shell / window environment †	Aqua (“Illuminous” / unified)	Aero (“Glass”)
Tablet and touchscreen	Nope	Yep	We know Apple has Ink, but that doesn’t exactly make your Mac a tablet computer
Virtual desktops	Spaces	Nope
Software
Backup	Time Machine	Backup and Restore Center, ShadowCopy, Previous Versions	Whereas Time Machine may be easier to use than Windows Backup and Restore Center, Vista does feature all the same (if not more) backup features
Browser †	Safari 3	Internet Explorer 7	What can we say, we like Opera!
Calendar	iCal	Windows Calendar
Collaboration	Screen sharing from Finder or iChat	Windows Meeting Space	This one’s hard to call; Apple has better ease of use, but Windows Meeting Space is more powerful — so both win
Contacts	Address Book	Windows Contacts
Email ‡	Mail.app	Windows Mail
File manager	Upgraded Finder	Upgraded Explorer	The new finder is great, no doubt, but it lacks the raw power of Explorer
Faxing and scanning	CUPS + location aware printing	Windows Fax and Scan	It’s arguable that Windows may have more powerful printing capabilities, but OS X is far better at printer plug-and-play
Legacy app support †	Rosetta	WOW64 (32-bit emulation in 64-bit Windows)	More info on WOW64 here
IM	iChat	Windows Live Messenger	Whether or not you like iChat, you can’t deny it supports more protocols.
Preview files	Quick Look	Preview pane
RSS / feed reader	In Safari and Mail.app	In IE7
Speech recognition	Yep	Yep
Text editing	TextEdit	WordPad	Apple included Word 2007 and OpenDocument support in the new TextEdit — WordPad still doesn’t support Word 2007
Transfer	Mac Migration assistant, Back to My Mac (with .Mac)	Windows Easy Transfer	We might have tied this one despite Back to My Mac, but WET just doesn’t work very well.
Video calling	Yep	Yep
Widgets †	Dashboard*	Windows Sidebar	*Now with .Mac sync and Dashcode
Media
Media interface	Front Row	Media Center (only in Home Premium or Ultimate Edition)
Media hardware support	Apple TV	Media Center Extenders, Xbox 360	Yeah, the Apple TV’s good and all, but MCEs and Xbox 360 have a lot of features that ATV just doesn’t have (HDTV streaming, video downloads, etc.)
Record TV	Nope	Yep
NTSC and ATSC tuners	Nope	Yep
CableCARD / DCT tuners	Nope	Yep (x4)
DVD authoring †	iDVD	DVD Maker
DVD playback (out of the box)	Yep (DVD Player)	Some versions of Vista (but not all)	More info on Vista DVD playback.
HD disc playback (out of the box)	Nope	Nope	Macs can playDVD Studio Pro authored HD DVDs, but we’re not really counting that
Media player †	iTunes, Quicktime	Windows Media Player 11
Photos ‡	iPhoto	Windows Photo Gallery
Stereo Bluetooth (A2DP)	Yep	Nope*	*Vista CAN support A2DP, but only via 3rd party drivers
Video editing	iMovie	Windows Movie Maker (with HD)
System tools
Activation	Nope	Windows Activation
Automation (user)	Automator (with UI recording), AppleScript	Nope
Data detection	Address, phone number, etc.	Nope
Remote desktop (host)	Yep (VNC and X)	Available only in Business and Ultimate
Screen capture	Integrated	Snipping Tool application
System registry	Nope	Unfortunately
To-dos (tasks)	Yep (from Mail, iCal, etc.)	Yep (From Windows Calendar)
Networking and connectivity
IPv6	Yep	Yep
Networking tools	Network Setup Assistant, Finder with AutoFS, Bonjour	Network Center (Network Explorer, Map, Setup, Awareness, Projector), DLNA	Both provide tools for different networking needs, and we feel both are strong for different uses
Self-tuning TCP	Yep	Yep
Wireless	WiFi with WPA 2 support	WiFi with WPA 2 support	Vista shows signal strength indicators for its available network list, why the hell can’t Leopard? (OS X does organize available networks by signal strength, though.)
Security
Antivirus	Nope	Nope
Encrypted, signed email	Yep	Yep
Email filtering	Spam filter for Mail.app	Junk and phishing filters in Windows Mail
Parental controls	Time quotas, usage schedules, granular application permissions, log viewer, remote access	Windows Family Safety Settings: time quotas, usage schedules, log viewer, some app permissions, and ESRB game support
Library randomization	Yep	Yep
Malware	Downloaded app tagging, signed applications, sandboxed apps	Windows Defender and Malicious Software Removal Tool, signed applications,
Smart Card support	Yep	Yep
VPN	PPTP and L2TP over IPSec	PPTP and L2TP over IPSec
Gaming
Graphics core	OpenGL, Core Animation	DirectX 10
Game network	None	Xbox Live Anywhere
Performance and hardware
Architecture	32 and 64-bit support	32 and 64-bit support*	Windows in 64-bit may require different drivers to function properly, many of which haven’t yet been ported; Leopard supports 64-bit transparently with no differences in drivers or software
Auto-defrag	Yep	Yep
Auxiliary display	Nope	SideShow
Drive encryption	FileVault with AES256 support	EFS and Vista BitLocker	While we’re sure neither will be easily cracked, Apple gets extra points for using AES256
Drive partitioning	BootCamp	Disk Management	Both work well, but Apple supports moving files between partitions
Multiple OS support	Yep	Yep
Network projector	Nope	Yep
Network storage	AirPort disk	Windows Home Server
Optimization	The usual multitasking	Windows SuperFetch and Windows ReadyDrive
Sync (device)	iSync	Windows Mobile Device Center
Sync (network)	Nope*	Windows Sync Center	*We’re not counting .Mac sync, this is more about machine to machine
Usage profiling	Location awareness (network, power, printing)	Mobility Center (network profiles, sync, battery / power, etc.)
USB caching	Nope	Windows ReadyBoost
Business
Domain support	Active Domain, Workgroup Manager, External Accounts*	Active Domain (Vista Business, Enterprise, Ultimate only)	*New feature that allows your system account / home directory to be stored on an encrypted USB drive
Integrated web server †	Apache	IIS (Vista Business, Enterprise, Ultimate)
Presentation mode	Nope	Yep (Vista Business, Enterprise, Ultimate)
Other
Upgradeable to different version †	N/A	Windows Upgrade Anytime