What other TV shows in the genre of fantasy do you think are better?
How about on the same network? True Blood.
It's only because there's simply more of it at this point. And if I had to judge seasons, I'd probably put GoT S1 above every season of Trie Blood, but I'd probably rank several seasons of TB above GoT S2. The last three have been excellent.
This assumes, of course, that you're using fantasy as a general identifier that encompasses all kinds of fantasy, not specifically "medieval fantasy" which would consist of very few shows. I don't think I'd rank it below legend of the seeker, though that's not a bad show.
But I would normally kind of lump scifi/fantasy together and in that case there's still a lot of shows I'd rather watch than GoT. Like Stargate or something.
This isn't to say GoT is a bad show, because it is by no means not. And someone's "best tv show ever" will never be every bodies unanimous choice. GoT I'd still way up there. If its not in your top 10 at the most, something's wrong. And I'm really expecting seasons 3 and 4 to put this she over the top for me. But I was also really looking forward to the battle of blackwater and that was a bit of a disappointment so I would say I'm simply hopefully optimistic.