Seriously for a game that was made for Windows 95/98 it holds up ridiculously well. No crashes and the controller support is great. Capcom should really consider putting 1 on Steam. Can't speak for 2, at least not yet.
Dino Crisis 2 is also very good, but different. Dino Crisis 1 is a straight-up Resident Evil clone, but with some systems that were scrapped from the series (such as the bleeding mechanic), the obvious Dinosaurs instead of Zombies, and I also am a fan of Dino Crisis' puzzles (they're not that difficult but I found all of them fun).
Dino Crisis 2 doesn't completely abandon what made Dino Crisis 1 great, and in some ways it's better (the combat system is better, for example, and in turn the boss fights are better, and there's a MUCH bigger variety of dinosaurs), but it trades off a lot of its horror tones for more action-survival tones, but it comes with an absolutely addicting combo-point system which is a bit similar to Mercenaries in Resident Evil 4 onward where you kill enemies before a cooldown time runs up, without getting hurt, which gets a combo going to get you more points, though the points in this are used to buy items/weapons/tools, upgrade weapons, and the like. Even ignoring that though, the game does keep up some horror tones, and has some fun mix-ups to gameplay, ranging from some puzzles, some environmental hazards, and some total mix-ups (like the underwater facility).
I wish Capcom wouldn't completely have forsaken the series. Dino Crisis 3 was bad, but the series is more than redeemable in my opinion, I think most wouldn't care about Dino Crisis 3 which was made over 10 years ago if they decided to make a new Dino Crisis game. At the very least, I hope they decide to put Dino Crisis 1 & 2 on Steam... Eventually.
