Wow all bad answers sorry to say. First when you say the best, the best gets very expensive as its almost endless what you can spend to get the very best in home audio and video systems. The key is asking what is recommended at a specific price range, which unfortunately you did not give. My guess is your talking in the low price range. A decent surround sound system will use separate speakers and components from different manufactures as the all in one or " name" brand systems are really junk. Not only do they not sound good, they are built poorly and will not last. Fixing these cheap systems when they fail ( and they will fail) is pointless and you'll end up having to buy a whole new system all over again.
A descent system will consist of separate speakers from a manufacture who only makes speakers and a receiver from one of the few manufactures who built good receivers like Marantz, Denon, or NAD.
Your best bet is go to one of your local independent high end audio video stores as they carry the better brands of speakers and equipment, and they generally have many years of experience designing and installing these types if systems.
The chain stires dont have a clue what they are doing and 98% of the equipment they carry us low end anyway.
Do yourself a favor and discover who your local high end dealer is and take your time and spent the extra money and get something decent, you will thank me later
Kevin
40 years high end audio video specialist,