Even better than RE2, just like a sequel should be.
Improved difficulty curve - not too hard at the beginning, doesn't get too easy towards the end, and the new Tyrant is much better designed - now encounters are much more threatening and fun.

Great new mechanics. Ammo crafts allows more freedom in weapon choice without giving too much ammo of each type to the player. Dodge, although isn't flawless, brings more variety to combat: makes the boss fights more interesting, gives a chance to escape otherwise hopeless situations, or even save some ammo if you're confident enough. Live selection feature and enemies/items randomization add a lot to replayability, I actually prefer this approach over the 2 characters one.

The story I liked the most out of the three. The map is less of metroidvania this time and more about going forward, but I enjoyed the variety of locations - there is a maze of barricaded city streets, sort of a throwback to the RE1 mansion and, as usual, facility-style endgame location, which I find even more thrilling than before.

Didn't play the following games yet, but liked this one the most so far.