Re: Ralph Vaughan Williams question
As is true with many works, differing conductors/orchestras may illuminate different facets of a work. I checked my rack and found only 3 copies of the Tallis Fantasia right now:
Maurice Abravanel/Utah Symphony on Vanguard Hybrid SACD
Herbert Vaughan Karajan/Philharmonia on EMI (oops, better make that Von Karajan...)

Leonard Slatkin/St. Louis Symphony on Telarc
Each brings something to the table. I've owned the Abravanel performance back to my LP days, and the emphasis on counterpoint and antiphony makes this a worthy interpretation. Herbie focuses on texture and adds lots of funky accelerando - it ends up sounding like Wagner. Slatkin is somewhere in the middle but with a great technical recording of a very good orchestra.
Incidentally, the antiphonal nature of this work would make it a knock-out candidate for a great performance natively recorded in DSD for a multichannel SACD. Sony, are you listening?
For those of you wondering who that Thomas Tallis character was, try the copy of his Spem in Alium (a motet for 40 voices written circa 1556-1573) performed by the Tallis Scholars on the Gimell lable.