I recently bought a Philips one with separate subwoofer. It has multiple connections, Optical, Digital Coaxial, HDMI, RCA and Composite to choose from as well a Bluetooth and a USB socket. So you can take your choice of how to connect it. Many of the cheaper ones have very limited connection options. The separate Subwoofer gives a good spatial definition to the sound output.
I bought mine with my Clubcard Vouchers so was able to afford a slightly more expensive one. Probably worth buying from somewhere where you can hear them to compare.