Since Dumbledore and Renly Baratheon have already been mentioned multiple times, I'll give a shout-out to some as-of-yet-unmentioned characters that I rather like: Ringil and Archeth from the A Land Fit for Heroes book series. They're both fully-realized characters, with real struggles; there's no skirting around the fact that they are homosexual (no "hinting" at their sexualities here, since it's a series that seems to be trying to grab the "grittiest fantasy series" title from A Song of Ice and Fire) while still not making their sexualities their sole defining trait; and - what's really unusual about them - they're two of the three main characters of the series.
