Spore: 7.8
Even for being one of the games that comes closest to Brawl-like hype and totally flops, it's still a decent game. It's buggy, and some of the stages are just boring (Tribal, Space), but it's balanced out a bit with it's infinitely reusable creators and a great creature stage.
If Galactic Adventures counts as part of the game, then give Spore a 9.6 instead since that expansion made Spore one of my favorite games out there for a long time.