Okay so here's the thing.
Anesthesia is pretty much Eruption for bassists. As such, it is a very important part to the history of any hård röckin' 4-string slingers such as myself. Plus it is a badass jam, no doubt.
To Live is to Die is the tribute to the fallen icon himself, and not only is a great fuckin' song no matter the context, but it really is gut-wrenching to listen to at times.
Orion is a very accomplished piece. It is a masterful composition, when I look back at the History of Heavy Metal this may well be the magnum opus of the glory days of the genre, transcending boundaries of anything and just becoming Pure Art. One of my all time favoUrite songs ever.
And yet I still have to go with Call of Ktulu as my chosen pick. It just has such an eerie mood to it that sounds unlike anything else in the Metallica catalogue. Possibly unlike anything else I've ever heard. The magic remains. Iä! Iä! Cthulhu fhtagn!
PS: Suicide and Redemption is totally cool and fine by me.