Could anyone guide me as to if we compare REVEL, USHER , KEF & DYNAUDIO , which are the better speakers in terms of audiophile sound quality
It's not possible to simply say this speaker is better than that speaker. The speaker is the end of a chain of electronics and some work well with certain electronic conditions while not working well with others.
Those are all well regarded manufacturers with fine products, but the first step is taken when you choose any part of the chain and then make sure that the other components mate well with what you've started with.
That's not to say that the speakers can't be the first component chosen, but that would be better accomplished by listening to them at a Dealer who has them mated with complimentary components.
An analogy might be in asking which is the better car, a Cadillac or a Corvette? That all depends on what the car will be used for and the needs of the person driving it. The Vette would be pretty useless for a family vehicle and the Caddy wouldn't do much for the guy who wants to road race.
I looked up reviews of all the speaker brands you mentioned, and they all appear to be well reviewed and highly thought of speaker brands. I did notice that they all seem to have a very large price range in their respective products. I think you could do well with any of these brands if you matched them with high quality electronics and sources.
With modern, high quality, speakers, The quality of the equipment driving them as well as the amount of power for a given model is of a higher importance than it was in the past. With high quality speakers you will become very aware of any short commings in the rest of your system.
I would advise letting us know what electronics you have, or are planning on using, and then moving on to speaker selection.
Am planning to use a Denon AVR 2311 , a Denon CD Player and a Panasonic Blu Ray Player
I looked at descriptions and reviews for the Denon and it seems that it should be sufficient to drive any of the speakers you are considering.
It seems from reading between the lines that the Denon's quality may not be up to that of the speakers you are looking at. If the power ratings can be believed (thats a lot of power from a box that size) you should have plenty. Hopefully you can return if not satisfied. Only you and your ears can tell for sure.