Despite the fact that I LOVE the laserdisc format, I must admit that I'd like to use it only when necessary - e.g. when there are no other HD available version... for example, I thought to use the BD for BATB instead of LD, but then I discovered that the BD is messed up... so, I reverted back to LD.
For BTTF, there are some HDTV rips that could be used; LDs could still be used as color references, plus of course for their marvelous soundtracks!