If I was forced to choose I would pick this one over the original mostly because the story and lore are so much better in sync with the rest of the games and it has a lot more of tidbits about the world, it feels more grounded too.
I still like a lot of things about the original one, specially the family design but this one has a lot of good things too, the highlight would definitely be the new dead CGs they are UNREAL, I was surprised at how good and bloody they are, specially the lamp ending!
The new portraits get a little bit of getting used to as a returning player but they are not bad by any means, I actually fell in love with the Greta one, superb; All the new things like collecting the cards and art are a nice touch and add some replayability, sadly I missed one of the cards...
The new puzzles and areas add a lot, specially for someone that played the original and was not expecting a challenge from this one, the doll house i a great section specially with the new Greta lore, I still missed some things from the original, the screaming bathroom guy to be more specific haha.
Overall I agree that this is the definitive way to experience the Game, my suggested order would be:
Alesa 1 > REMAKE > Alesa 2 > Alesa 3
It's nice to see you here still making great games as usual, thank you for your hard work!
Keep up the good work!