Though I remember when I was young I was fond of "Story about a True Man" AKA "Story of a Real Man", the masterpiece of Boris Polevoy, and even though it has quite some tragic chapters I would still read it over and over again. I used to believe he is a great novelist.
I also found two novels of Yuri Bondarev great: "The Last Shots" and "The Hot Snow." Both are so overwhelming, tragic but passionate (romantic?) were about the war, bravery, love and loss.
As a matter of fact, I believe I've also read Mikhail Lermontov's "A Hero of Our Time". Didn't like it as much, maybe because of the subject rather than the style IDK.
@tovoxy: are these well known novels in Russian literature? I only read translations of them.