Doom was a whole new experience. I remember playing the shareware version a friend gave me on my old laptop - I flattened and charged the batteries 3 or 4 times in one sitting!
I'm glad to see Diablo was high on the list. Although I never bought the first one (only played a borrowed copy in multi-player), I can understand why it took off. Especially how I have bought Diablo II and am enjoying it immensely.
I'm also glad Wipeout 2097 was on the list, though I would have rated it higher. It, too, was a Defining game for the PlayStation. IMO, it was one of the few games where it felt like you were going the speed you were going.
Wade.