i try to avoid using stock creatures as much as possible. talking dragons, elves with pointy ears, who are all slender and live in beautiful forest settings, dwarves who live in the mines, out of control orcs/goblins running around spreading disease and wielding crude weapons... in a movie those are fine, but stretched out over a bunch of books, it's just kinda blah anymore. i simply got burnt out on that type of thing. nothing wrong with 'em, just not where my tastes are now.
my one fantasy that i did in earnest, 'preyers,' the bad guys are called the Aru. the premise of the book is that the world had previously died to the last man, time passed, and now the dead have arisen to fight the final battle of good and evil on earth. pretty simple, eh? the good guys came back pretty much as they were in life, but the bad guys came back rather singed and gaunt and smaller, rather burnt looking, with tough skin and shallow features. i thought about how some readers might view this as a racial slur, but since it's not intended that way one iota, i decided to take my chances. i used a classic version of the one angel who's got a cameo, and a few giant troll-type creatures. there's a gladiator form of entertainment, and the creatures there are bizarre without any real basis. there's a succubi in generic form. in fact, the only reason i put strange creatures in there at all is because i feel that satisfied a lot of people's desire for that kind of thing, trying to tell the story i wanted to tell yet trying to give people what i think they want at the same time, too.
not that i'm an authority on the subject by any means, but i've delved into the arthur legend quite a bit. looking at a lot of the arthur-inspired paintings illustrates how fantasy stories evolved over time to where there were so many fairies and elvish creatures abounding that it was nearly impossible to travel through the woods with them swarming around your head. i seem to recall one painting where two knights trying to pass through a woods are somewhat ducking from all the tinkerbell-like fairies. (arthur's death is another heavily done theme.)
those stories i've done where there are classic creatures, i try to poke fun of them more than anything for my own amusement as i certainly can't add anything new to them by now. what could i tell you about a dragon that you don't already know? from that standpoint, there has to be one helluva reason for a dragon to exist in one of my stories. if i did one today, it would be a mindless beast rather like a dinosaur, which i think makes good basises for fantastic creatures. actually, were the lands populated with an abundance of various types of wild critters, that might be kinda cool. as it is, dragon sighting is rather an event to most fantasy characters. might be interesting for dragons not to want to eat or help humans for a change: maybe people might trek up a mountain in a group to 'dragon watch' like they go whale watching, eh?
unicorns and flying horses, three-headed dogs and talking serpents... nah, not my thing. sitting here right at this exact moment, the one idea i've got for a talking dragon story involves the dragon's ghost in a mystery-type of deal. whoo... awful. different, but just not good, lol. (i should mention that as far as fantasies go, i can no longer read another 'great war' drawn-out over a trilogy where it's pretty bloodless, one or two of the ragtag band dies in the end, etc. etc. etc.. i'm at a point where individual struggle doesn't have to be on an epic scale. that said, today i'd not be interested in writing 'preyers.' i'm much more a 'slice of life' person now.)