I prefer both.
Lichess vs chess.com

This question is like asking republicans whether democrats or republicans are better
LOL, that seems accurate

I prefer Chess.com due to Game Rewiew, puzzles and better Stockfish, but Lichess' studies work better

Also in chess.com we can see all the moves that we play like Best Move but Lichess only shows the Eval Bar .
No Lichess shows also blunders, mistakes and inaccuries.

I made this a long time ago and haven’t checked it in a while. I now mostly use Lichess for studies also @galileo159, although I used both a lot when I made this.

I prefer lichess for tactics because it allows you to play through the entire game allowing you to see how the tactic developed.

A lot of it seems like tribalism, 'my team vs your team'. But I have tried both: I started with Lichess and played there for months, then played at both for about a week, and since then exclusively here. And it's just true that most prefer chess.com, by a factor of ten to one, the latest figures. There's a reason for that. And it's not just because chess.com has a better name, as some Lichess supporters like to think. I much prefer the UI, myself, not just for games but also for forums, and things like profile pages. There is much more a sense of community here, also, in my opinion. And the cheat detection system is the best in history... no one else even comes close: around 20 million games analyzed every day, 15 thousand accounts closed.

But I'm still a Lichess member, though I no longer play there. I really like their Interactive Lessons feature.
Also in chess.com we can see all the moves that we play like Best Move but Lichess only shows the Eval Bar .