AnyDVD HD doesn't rip the movies itself, it allows for you to rip them or mount them by breaking the copy protection. To my knowledge, AnyDVD is well supported, frequently updated so that most BD titles are available to be mounted and/or ripped.
Latest versions of PowerDVD do not allow for hard drive playback from _ts folders. I thought that you could mount them via Daemon Tools and play them that way, but I could be wrong. Arcsoft TMT is a viable player for a lot of folks that has improved recently. As for the dowsampled audio, PowerDVD does this but they have stated that they are working on resolving the issue which involves PAP and proper hardware specifications.
Two new products that are on the horizon will hopefully expedite bringing HD Audio to everyone: Asus HDAV1.3 and the new Radeon 48xx graphics cards. There are two active and helpful threads on here about them both right now.
Plus, the new 8200 motherboard has brought people 8 channel LPCM without an additional sound card as of late and can play back BD movies without a discrete graphics card. Whether or not the board alone passes HQV tests is another story...I believe the thinking right now is that you need a Phenom processor to get better video performance from the on board graphics (or if AMD releases Kuma anytime).
PS3 will be easier, maybe cheaper, but the archiving of movies seems like it'd be difficult, if not impossible, for it to do. Hope that helps, an attempt to summarize 6-9 months of hardware and software evolution!