That depends. Some ports are good like the orignal sly collection and some are bad like sonic colors ultimate (actually sonic colors ultimate is worst then bad)

I'm a bit late to this, but I'd like to share my thoughts anyways.

I think bringing old games to new consoles is a fantastic idea. Not everyone has gotten the chance to play blasts from the past back when they came out. Me personally I played the original Final Fantasy 7 on my PS4 and loved it. Wouldn't have had the chance to experience it if hadn't been available for the mentioned modern console. As long as the port is done right, no complaints from me.

Though naturally, this can also go very wrong. Best example would be Silent Hill HD collection. 3 games bundled into one, tidied up with better textures and even different voice actors and brought out for more up to date systems. The result? A laggy buggy mess with frame rate issues. People hated it and they should. Silent Hill is a dearly loved franchise, which new people are still getting into. When that is your first experience, it may turn you off from the rest of the series. So, moral of the story, don't put unnecessary "improvements" into your game in favor of a clean playing experience.

As for remakes... They're in a way, doomed to fail. Lemme explain. Remakes, in itself, are not a bad idea. You take something successful from the past, redo it, but to modern standards and then change some stuff up so it's not the same. Problem is that nowadays, that's not so easy. Standards have been raised to the sky with stuff like graphics and such. That leads to stuff getting rushed. Best examples are Final Fantasy 7 and Resident Evil 3. The Final Fantasy 7 Remake was quite successful. But... In my opinion it was more of a tech demo. In the original, the game starts in a town called Midgard. It's basically the tutorial area, where you gather your main party, set up the story and learn some of the game mechanics. And a few hours into the game, you leave Midgard and go into the open world where the real game begins.

Now, in the Remake, Midgard is the whole game. Making Final Fantasy 7's entire world in detail with updated graphics would take forever. People would have probably lost interest in the game by the time it came out. So, they decided to to cut the game up into two pieces first part being Midgard and the other 97% in part 2. Now... There's a very big problem with this. Since the whole game plays in the original's tutorial area where nothing too drastic happens with a few exceptions which are not really important for the later story, they had to move some stuff. Stuff which came at the middle and END of the original was shoved into the Midgard section in the Remake so it had, well SOMETHING to offer. But that completely messes up the pacing and makes it feel so rushed. The ending especially, while the boss fight was in my opinion absolutely amazing, it had so much less meaning since in the original you would see those things after a long, amazing journey full of challenges and character development. Here, it's just kinda thrown in there. I dunno, for me it just doesn't work.

As for Resident Evil 3? If you have never played the original game before, you will probably really like this game. If you're a fan of the original however, you will see how bad this game messed up. Okay, so Resident Evil 3's highlight was the unrelenting pursuer Nemesis. A nearly indestructible killing machine that follows you through the whole game. He is present in... Let's say 78% of the areas in the game in the original. In the Remake that was dimmed down to... 25%. Why? Because it was once again rushed due to having major difficulties of holding up to the modern standards. So many areas were cut, so many shortcuts were taken... And Nemesis? He was no longer that menace that follows you through the whole game. He only follows you through half of the game. After that, he only appears in cutscenes and boss fights. You no longer had that sense of dread that he could be lurking around every corner. Nope, that was completely lost in the Remake. They just took a handful of areas in the game, made them pretty, added a few things and scrapped the rest. Fans hated it. Me as a dedicated Resident Evil fan since the age of 10 found this game pretty neat. Then I played the original and now I can't look at the Remake the same way ever again. You could probably make an entire DLC section with all the stuff that was cut. And the things they added didn't do a great job of balancing things out. I dread to think how they're going to f*ck up the Resident Evil 4 Remake. You CANNOT possibly recreate a game that is considered to be one of the greatest games of all time. Here's hoping they learned from their mistakes.

But yeah, haven't really made good experiences with Remakes so far. Not a fan.

I’ve never played any of the silent hill games (to much of a scary cat lol)

I’m going to slightly disagree with your next point
I don’t think their “doomed to fail” from their inception if their done right
The first two resident evils I think were done really well

But like you said and this is what I agree with, they need to be done right. They can’t be rushed jsut because of a deadline for games
It’s like the sonic boom game
It’s terrible but it gives the allusion of potential and that’s the thing I hate most about games these days
When potential is given away becuase they want to rush