When comparing iTunes vs Kodi, the Slant community recommends Kodi for most people. In the question“What are the best media players for Windows?” Kodi is ranked 7th while iTunes is ranked 13th. The most important reason people chose Kodi is:
Android, Mac, Windows, Linux, iOS, Xbox, Apple TV (jailbroken), and more.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Can create a playlist based on rules
There is a feature included in iTunes called Smart Playlists that allows the user to create playlists based on criteria such as BPM, Genre, Artist, Album, Plays, Rating, etc.
Pro Can automatically create playlists based on a chosen song
There is a feature called Genius included in iTunes that allows the user to select a song and create a playlist based on that song. It will analyze the music library and choose songs similar in tone to the one chosen.
Pro Syncs across devices
Synchronization of playback information, podcast subscriptions, and settings is possible in iTunes. It can also automatically download purchases made on other devices.
Pro Airplay support
Streaming audio to all Airplay enabled devices within WiFi range is permitted by iTunes. It's also possible to select more than one device to play a song at the same time.
Pro Can auto-import CDs
The user can set up iTunes in such a way that media (from CDs) can be automatically imported once a CD is inserted. This also comes with customizable import settings (bitrate, codec). Additionally, iTunes can automatically fetch track names from the Internet.
Pro Built-in parental controls
iTunes parental controls can be used to deny access to certain parts of iTunes such as podcasts, internet radio, store, or shared libraries, as well as restricting access to media that has a certain rating or warnings.
Pro Can autopull information about songs
Track names and album artwork can be automatically obtained by iTunes.
Pro Sleek interface
The interface of iTunes presents a flat, clean design with playback controls at the top-left, search at the top-right, and a row of ways to categorize available media beneath that. It can also be minimized to take up much less space. The minimized interface is called the Mini Player and it can be set to display on top of all other windows. It's possible to show iTunes on top of all other windows when playing movies as well.
Pro iTunes store has a huge selection of media
The iTunes store offers a huge catalog of videos, songs, and podcasts.
Pro Advanced podcast management
Pro iCloud integration
Pro Internet radio
A music streaming service called Radio is available in iTunes. It creates stations based on chosen genres, songs, or artists and requires Apple ID for access.
Pro Ability to add RSS feeds
The ability to add RSS feeds in iTunes keeps the user informed of the latest web content.
Pro Can install on several devices
Android, Mac, Windows, Linux, iOS, Xbox, Apple TV (jailbroken), and more.
Pro Lots of plugins available
Like PlutoTV, Curiosity Stream, and YouTube. 3rd party repositories, such as the SlyGuy Repository, contain more plugins like Disney+, Paramount+, Hulu, and Netflix.
Pro Free
Pro Open source
Completely FOSS, licensed under GPL 2.0
Pro Great customization/multiple skins
You can change navigation flow and other aspects of Kodi with the plethora of customization options and skins.
Pro Can play many different file formats
It supports Blu-ray Discs, CDs, DVDs, USB Flash Drives, local Hard Disk Drives, AirPlay, network file shares, basically every video, audio, and image format available, subtitle files, and even retro game console ROMs.
Cons

Con Heavyweight
With each update, iTunes appears to get bigger and bigger, though adding little more value, especially for the user who just wants to listen to and organize music.
Con Unfortunately required to fully manage iPods
Con Buggy iTunes app
Immediately after the worldwide launch of Apple Music, a new version of iTunes was released (12.2). Many users have reported issues with this release, such as music lists getting mixed up, music having wrong metadata, etc.
Con Duplicates media files
Con Album organization can be fragmented
Songs purchased from the same album at different times will be added as separate albums.
Con Authorization limit
Con You may have to jailbreak some devices
This is only for things like a Fire stick, but Android TV boxes etc. should be fine.
Con Terrible navigation
Menus over menus with dozens of submenus.
Con Not Client/Server Capable
While most solutions provide a client/server setup the KODI developers REFUSE to adopt this approach forcing individual setups for every device.
Con Poorly optimized
Often not a fluid experience on low-end devices.
Con No official AAA addons for streaming services
It does not have any official AAA addons and fully relies on the community which result in often broken packages/addons.
