What is better audio encoding format? (Apple Lossless, FLAC or WMA Lossless?)?

Question

I want to ask another question that in the wikipedia page, it says WMA 9 Lossless, and its revisions support up to 96 kHz, 24-bit audio for up to 6 discrete channels (5.1 channel surround) with dynamic range compression control.

Does it mean that if I have a 7.1 speaker, that encoding format would not work at all, or 2 of my speaker can't make sound?

Answer 1

AAC+ is better for quality at low bit rates thus saving H/D space compared to other formats.

Answer 2

i have to say apple lossless because there are no gaps whatsoever