It depends on your preference, either the features or the sound, which one is more important to you.

If the sound is more important, I guess:
(1) In tonal quality, Yamaha will sound more relaxing in the ears as compare to Denon bright character (especially the AVR-XX12 & XX13 product years).
However,
(2) In sound character, the Yamaha will sound like ordinary brands enough to please most people, while Denon will have extra advantage in warm and crisp sound to please audiophile people.

Yamaha RX-V375 or Denon AVR-1513, I would go for Yamaha

This post has been edited by radovantz: Feb 12 2016, 10:08 AM

I would go for the 477 considering the greater amplifier power than the 300s series, also got full 5 channel banana plug speaker terminal at the rear. Last year I bought the 477 for RM1799, it was a quick last minute decision because I was about to buy the 377. About gadget features, I don't really use them

If budget is limited, I suggest step by step investment in your setup. Much better than investing in cheap product one shot.

Buy the most important equipment first, then add the other equipment later.

Firstly, get a receiver and player. Try to find the good quality center, left and right speaker from the same model. This 3 channel is the most important channel in home theater. (Don't set surround speaker as NO in your receiver if you want to hear more detail). Now you can enjoy the movie.

Secondly, get a pair of surround, also if possible find the surround speaker from the same model like the front speakers. Standard speakers (aiwa, sony, etc) also can be use as surround, just to add surround effect. Normally surround speakers is not to be set as loud as the front speakers.

Thirdly, find a good subwoofer. While waiting for subwoofer to came in, you still can enjoy the movie with good sound quality produced by the 3 front speakers.

This post has been edited by radovantz: Feb 16 2016, 11:33 AM

For home theater, I would suggest to pick up speakers with frequency response covering 80Hz.
Example 50Hz - 20kHz or 80Hz - 20kHz, as long as the 80Hz frequency is coverred, then it is ok.
If the speaker cannot cover 80Hz for example 120Hz - 20kHz, more likely no bass will be produced through the speaker, not enough impact. But for surround is ok.

Some speaker packages don't cover 80Hz by its satellites, but to be handled by the subwoofer. Be careful when choosing this kind of package. Need to listen them first. Some of them may have hole in frequency, i.e gap between High Frequency and Low Frequency is too obvious. Some good packages may have all of their speakers well integrated each other.

Also need to see sensitivity. Try not to use speaker lower than 86dB because it will be power hungry, you turn high volume but still can't go loud. 86db and above should be ok. Lower sensitivity speaker like 85dB will need more powerful amplifier to drive them sufficiently.

This post has been edited by radovantz: Feb 16 2016, 03:05 PM

Wow, very good info. Thanks

Denon speaker SC-M series is ok. SC-M series is actually using Mission parts.
Other series not sure about the quality, try avoid them

I will use Sony speaker only if I have Sony amplifier to connect it with
Sadly Sony amplifier is currently not available in Malaysia.

Many things to consider first before jumping into Atmos home theater.
No point of having Atmos if sound quality is abandoned. Should have invest in sound quality first, like choosing good speakers for basic 5.1 channel, until we are very satisfied with it.
Also need to invest in making listening room as comfort as possible.
Then Atmos (and surround back) would be the very last thing do.
Okay to have Atmos AVR first but it doesn't mean we have to use it immediately.