Sometimes the compatibility lists can throw you off. What will be the "most helpful" here and available for the compatibilty thread will be actual use with good results with many compared to those were problems are seen. We'll have to compare results later when seeing the responses here to those you see in the lists there.
One thing to add to this is the variables? Sometimes a game or other program will run like a champ on one system while failing on another. Softwares especially games have always been the hardest to deal with when these problems come up.
When you see the games that run good on many Vista systems that's when you will have those to add to the compatibilty list seen there. In a sense we have to perform the benchmarking here while the final results go there.