I'm a voracious reader with a penchant for Sci-fi. Very few authors that anyone unfamiliar with the genre would recognise, though i'm partial to the works of the late, great Robert Heinlein. Love him of hate him, you can't ignore him, he has almost as many correct predictions of future tech that have come into being as Arthur C Clark.
I use a kindle and down load 1 or 2 books a week on Amazon unlimited. MUCH cheaper than buying paper books and easier to carry around too!
I read Sci-Fi a lot as a teenager, I still enjoy re-reading Arthur C Clark, but when I try and re-read Asimov the terrible writing style annoys me so much I have to stop. I was mcuh more story driven as a teenager, now I care a bit more about how well written stuff is. I actually rather like H G Wells, the "what we thought was science back then" doesn't bother me and it's really well written.
I quite like Greg Bear as well, although I don't think he's ever bettered Eon.
I know what you mean about Asimov, my fairly comprehensive collection of his work has sat dusty and unloved on shelves for many years.
I tend to buy episodes of serials now, sometimes it's quite fun to watch the writer develop over 7 or 8 books, and the spelling and grammer improvements when they get better proofreaders!
One relatively "new" guy i'm reading lately is Elliot Kay, tells a good story! I'll reread his, if I can't be bothered to go looking for something new!