A Pricey Integrated Amplifier or equivalent overall priced “seperate” audio Components ? Which is Better for Hi-Fi sound ?

In my limited technical knowledge and experience, i would prefer a separate pre and power amplifier section, both of which do their work separately.

Second option instead of the pricey one. First option may not be tweakable to suit what one would like to hear, but I could be wrong. 

Very interesting question. Looking to see what people have to say