RE1, 2, 3, CV all came out on the PS1/2 first.
RE2 was ported to the N64.
RE4 and Zero came out on the GC, with RE4 getting ported to the PS2 (with added stuff).

Those are the original releases. RE1 was remade for the GC using the Zero/RE4 gameplay style. RE5 looks to play like the remake and RE4.

Ok, I can go on and on (I'm mildly obsessed with the series), but I'm out for now...