I really like Cerberus, Rat, Rat King, Deer, Tombstone, and Doppelganger mix. Its fun to try to place things just right and when you get a big absorb with Rat King its so satisfying. Usually Cerberus doesn't work too well with Rat King, but its a cute dog so I have a hard time passing it up lol. Really just all the tiles that have some animal on them are probably my favourites cause they are cute. I like the angels and vampires, too, though I have never managed to get a full pack of vamps haha.
I just played a pretty good game with Ghoul, Reaper, Human, Golem, and Temple in it. The builds with Cinder and Fire type cards I have a hard time with and have been trying to get better. I do like to use the bonfire with the fangs (forgot if those are the actual names of the cards) and absorb the bonfire points before they diminish, but thats the only fire card I have played with much success.
What about you, do you have a favourite build to play and/or favourite tile to design?