Can someone get me up to speed on this thread: explain what it means to be a Tolkien (of any nationality)?
As I pointed out earlier in the thread, it's really just a marketing gimmick. Most writers of epic fantasy over the decades have been compared to Tolkien. Because Tolkien was always the biggest seller ever in epic fantasy. It's just saying, "you know Tolkien, how awesome he is? Yeah, this guy is totally just like him. You should buy this book." If I had a nickel for every time I've seen a fantasy book that had some variation of "this writer is the next Tolkien!" written somewhere on the cover I could probably buy my whole family a nice dinner out.
Martin just happens to be THE big thing in epic fantasy right now, so of course he's being compared to Tolkien. Comparing one author to another is fine. It's just a frame of reference for introducing an author to a reader who is familiar with a different author. Though, yes, the whole idea of any one author being "the next" whatever is silly. Like I said, it's just a marketing gimmick.