Honestly, I hardly have a huge collection, but I've generally been preferring the HuCard games. There are certainly great games on CD like Gate of Thunder and Rondo, and to a lesser extent the Ys games, but I've been finding that a lot of the supposedly classic CD games seemed to mostly rely on the novelty of having cinemas, CD music, and the like more than gameplay. Valis 2 and 3 were pretty much just bland Castlevania knockoffs. Exile was a bit better, but the boss battles suck, and the gameplay isn't all that tight. And while I quite enjoyed Shubibinman 3, it's only a half hour long and can easily be beaten the first time. It felt more like the demo of a great game than a complete game, and I wished they used the time, money, and space to do more levels rather than cinemas.