3. Daily (correspondence) tournaments and a larger correspondence community. That's mostly what I play, since it allows me to play whenever and for as long as I want. 10-20 simultaneous games means there's always something for me to play. I can blitz out moves for all games in 15 minutes, or spend an hour thinking about one game.
I prefer lichess, but just can't have that experience so I pay for chess.com.
You can setup multiple pre-moves, but each one takes a minimum of 0.1 seconds. Lichess doesn't have this minimum time requirement, so it doesn't let you setup multiple pre-moves.
I disagree and I play almost exclusively on Lichess. In chess.com you can:
1. set up multiple pre-moves and
2. play several variants that aren't in lichess, including 4-player chess (this is mostly the reason I sometimes use chess.com).