I would not recommend dumping the substage altogether. A sub can be a very important piece of the puzzle when creating a sweet sounding system. Even a small sub in a small box power by a small amount of power can provide happiness and fill the void for missing subbass frequencies.
As for the best components out there, that answer is easy for us to answer but hard for you to do so: The best components are not based on higher price, big power handling, famous brand name, familiar model number, etc. Whatever sounds best to your ears are the best components.