To me also yes, because it has the most amount of content - 4 scenarios. Imagine if Resident Evil 3 had 4 scenarios... Increasing difficulty makes enemies much tougher, which is a MUCH better and MUCH more interesting option that the VERY boring damage increase like they do in the remake games. Increase enemy damage - same boring scenario, same strategy. Increase enemy toughness - now you have to totally reconfigure your walkthrough strategies, because A: you won't have enough ammo to kill everyone, and B: you won't have the time to stand and kill a bunch zombies in a narrow corridor, because they will surround you before the first one even falls down, so you have to think of strategies of getting around them.
Original is still much better than remake.