Red Dead 1 is better than 2.
Red Dead 1 was more focused on the cowboy shooty shoot adventuring. Red Dead 2 was more focused on turning itself into a confusing mess of RPG elements. And the focus on horses, while nice, makes an already way too broad focus even worse. So I need to take care of bathing, feeding myself, and more to make sure everything is running fine. It's perfectly fine, but I just wanted an open world Wild West game, not a full life simulator.
The horses are slower too, and there's something off about the shooting when you go from the first to the second game. They also fucked up the dueling system and its now an even bigger mess in the second game. The honor system is even more shattered. In the first game, to get someone off your tail or stop them, you could shoot their horse from under them and stop them dead in their tracks. But that's Heavens Gate compared to the second game where now you lose honor if you shoot a horse, even accidentally. I'm sure 1900's versions of PETA existed in Lemoyne.
When you put on a bandana in the first game, you could get away with anything and not lose any honor, and more importantly, the cops would only be after your ass when you put it on. In the second, the cops somehow can see through it and instantly ID you. Kind of fucking irritating when you do one of those side store robberies that net enough to barely pay your bounty for the area, making the whole robbery thing pointless. I guess what I'm really saying is that I finally get to be an actual criminal instead of one who was trying to be reformed and forced to hunt down their old friends by the government, and it pulls a Dishonored and says "Uh-uh, you want the good ending, you can't be the badass we said you could be".
And finally, where the fuck is Mexico? One of my favorite things to do in RDR1 is having a giant fight with the law and make a desperate race to the bridges into Mexico and getting to safety, paying off my bounty, then messing up Mexico (well worse than it usually was) and riding ahead of the Federales and to do the same thing. Now I'm just stuck in fake Colorado, fake Louisiana, fake Appalachia, and the old American side of the RDR1 map. Mexico was one of the best parts of the original game, and they wasted the time and data to make the map and did nothing with it.
Tl:dr- Old game good new game bad