Mostly cross-platform suggestions:

Apples to chuck:

• Apple Music ymmv, I have lots of mp3 with iTunes match that’s why I use it, but if you don’t, Spotify is clearly the better algorithmic music suggestion service
• Podcasts are probably better in Overcast etc.
• FaceTime / Messages is fine for apples to apples, but you’ll need other messaging apps obvs
• Carrot Weather is better than Apple Weather, shame about Dark Sky
• Calculator is bested by PCalc
• Arguments can definitely be made against Logic and Final Cut
• Apple News is pain
• On that note, even with the highest tier of iCloud, it’s probably not worth it to do Apple One until your are actually spending over that much on things you actually want. Apple TV for example is easy to binge through every few months.
• Kindle is cheaper than iBooks
• Fantastical is a great calendar replacement
• Obsidian is great if you’re a Notes power-user

Apples to keep:

• iCloud and keychain are probably the best if you’re all-Apple, but back up elsewhere or consider other cloud storage solutions and 1Password. Definitely sign up for lowest tier iCloud as it unlocks a lot of functionality.
• I prefer iWork (Pages, Numbers, Keynote) to ms office
• See Apple Music above if you have your own mp3s or old iTunes purchases
• iCloud Photo Library is getting better and is very convenient
• Find My is great if you have AirTags, use it all the time on my keys

That’s all I can think of rn! Personally I go for rational functionality over philosophy as I think that’s a trap! They’re just computers, don’t not use stuff based on principle if it works the best, but also don’t get sucked in by the hype, they make it as easy as possible to eat all your money! 