Because a majority of the filters in his redundant list aren't available in 64-bit flavors, so naturally you have to go for the lest common denominator: 32-bit.May I ask why?
User preference for the most part. For the few cases where it isn't user preference, it comes down to which feature is supported by which set of software. For example, Haali Media Splitter is one of the few that supports ordered chapters, yet because development has become stagnant it doesn't support the inter-leaved AC3 tracks in TrueHD (or something to that effect).What's the purpose of all the LAV filters and MadVR? On Win7, I install Haali and MPC-HC, and I've never had a problem playing back anything.
This is all you need. I have other players on my system, but MPC-HC handles everything quite nicely and it has the most functional interface of any of the players as well. And it it is updated twice/month all year long. I don't update it that often, but if you do ever encounter a bug, you can likely get it fixed faster than any other player out there.