I love all 4, I think the third is the most hated instead... the fourth is the favourite... IMHO.
I give value to things taking in mind the release date too and not just the game... the second will be forever my favourite, even if it wasn't my first RPG cause that was Shining in the Darkness (sooooo good), but PS2 caputered me... ah... maybe the SCI-FI was more interesting to me when I've tried it, who knows! :D