An evolution in control, gameplay, and STORY. RE4 is the reason for believing.
I must comment on the story which is by far the best of all RE titles. For those new to the RE series it brings in a fresh storyline while including characters from older titles to keep the purists happy. I specifically like the "Los Iluminados" theme which gives Umbrella time to rebuild and perhaps even join forces.
The game-play can be summed up to be intense and intelligent. The puzzle element remains true although a bit tedious at times.
I recommend everyone partake in this modern masterpiece and for all the Gamecube owners to go one more round on the PS2.