heard both. went with the marantz sa8260. the sound quality are excellent on both. the marantz is a very musical unit that has little to fault at this price. the redbook is pretty amazing.
the vocals and musicality of the unit is outstanding for units less than $2k.
though the marantz is better built,there have been servo/transport / toc errors. it took 2 x to the marantz factory to be repaired.
i think alot would depend on how much you want to spend.if less than $400, the phillips(1 year warranty). if you want to spend $700- than the marantz (3 year warranty.
i initally found the marantz a little on the warm side, but now it is broken in very neutral and musical. i think it is very unusual to find a "musical" digital source. they are few and far apart.
hope that helps,
mike