I like things that are new and fresh that are also iterative. Reiterations can get old. But "innovations" can also result in very eh software. All of my favorite games do something unique to separate themselves from the pack, but aren't wholly original ideas, and are mere iterations or a different take on a traditional genre. So yeah, Resident Evil 4 is a new take on Resident Evil, but it isn't a completely revolutionary game and still uses some elements of the older games. Shenmue, Jet Set Radio, GTAIII, and FF8 are similar. Games should be distinct, but not so distinct that they are alienating. For example, I can't stand SaGa games. Theyre too weird for me. But I'll take something like Valkyrie Profile 2 any day.
That said, I do enjoy iterative games a lot and they serve their purpose. But even the Musou games do something to make themselves distinct from another, and that's something that's very important to me.
Still, a good game is a good game. DQIX is my favorite ds game, but it is the same old shit. But I LIKE the same old shit.
It just bothers me when certain genres remain static. I think the best example of that would be fighting games. They haven't really evolved in like ten years. But I still like them.l even though I wish they'd do more experimental games like Virtua Fighter 3.