Generally speaking, you want to set your A/V receiver for 'STANDARD' or 'AUTO' mode.
The markings on the top of the receiver or on the front indicate all the different surround sound formats that it can decode. It doesn't mean one is better, or worse, or anything else, it just means that the capability of the A/V receiver includes what is listed, or more accurately - advertised - on the receiver itself.
But, it is the source, your Blu-ray Disc player and your cable box which is feeding the audio to the A/V receiver, and you want to use the best quality possible FROM the source to the receiver.
So, you make an HDMI connection from your Blu-ray Disc player, and let the A/V receiver handle the audio duties automatically.
Now, Yamaha is well known for adding a TON of surround modes. My old Yamaha had something like 56 different surround modes available to it. Which one did I use? AUTO! The only time I didn't leave it on auto was when I listened to music and I wanted all speakers to be used, and then I set it to multi-channel stereo.
So, here is the product page for your receiver:
RX-V373 - RX-V - AV Receivers - Audio & Visual - Products - Yamaha United States
You should set your Blu-ray Disc player to use the best possible audio format - either DTS-MA or Dolby True-HD if possible, and then just leave the receiver on 'auto'.
You can certainly play with ALL the surround settings, but they don't represent what is on the disc itself. It's just a set of acoustic 'enhancers' which change the original signal to sound like something it is not. Most people find these effects to not be pleasant and just distracting from the original audio. So, after playing with them for a bit, you likely will just decide to turn them off and go back to 'auto' mode and just enjoy what was put on the original source to begin with.