I don't like Final Fantasy either, but I can't ignore suggesting it when the fanbase is so large. It's probably not necessary to play Amplitude/Frequency now; as you say they are like an early stage GH. But when I played them years back I liked them, and you don't look like a nerd with a plastic instrument!
TimeSplitters (2 in particular) is brilliant and, while you may not be a fan of FPS, it's humourous - unlike so many of the military games from now. Prince of Persias? And how could I forget Canis Canem Edit/Bully?