I prefer DVD Audio over SACD or concert video - when the mixes are done nicely.
Favorites: Fleetwood Mac - Rumours, Steeley Dan - Two Against Nature.
Worst: I actually agree with MAS (gasp) and vote for The Doors - LA Woman. I will demo the title track for those who are not used to well-mixed audio just to show what the medium can do, but that does not mean that I think the mixes are "good." Instead, Jim Morrison's voice floats around different speakers arbitrarily. Wish someone would remix another version of the album for DVD-Audio because its a shame, given the music.
As for rear speakers, I disagree with some of my Klipsch brethren and wholeheartedly prefer floorstanders in the rear/sides to the infamous sprayers (even THX-rated ones). In my experience, there are a fair number of DVD-Audio and SACD mixes that require substantial participation from the surrounds beyond "helicopter effects" or crowd noise. I tried various sprayers, including RS-7s, and large bookshelves, including RB75s, and I ended up going back to floorstanders. Of course, just my opinion and your mileage may vary, etc., etc.
Carl.
Man Cave: 69 pseudo-Klipschorns (+Forte drivers, Trachorns, Altec 902s), center: 91 Belle (DHAxover), side surrounds: 95 KG 3.5s, rear surrounds: 77 Belles (511s, 2404s, ALK ES); SVS PB12/NSD-2, SW8. Peach, Classe SSP30,MkII, NosValves VRDs, Sonic Impact Super-T, Dynaco ST 70, QSC PLX 1202, Crown Powerline 4, Jolida JD100 modded, Denon 2900, NAD 4155, Thorens TD160 Super w/Grado Reference, 7.1 & Movies.
Family Rm: RB15s, RC7 (Dean mod), Axiom RS7s, Yamaha RXV1300, SVS 20-39PCi.
Patio: JBL 4612 Cabarets, Trends.
Too many horns, not enough time