Method 1 gave me pretty much nothing but female human on male feral animal stuff. Which, except in rare instances, I often very strongly dislike. This was not one of those rare instances - the pictures it suggested to me were by and large the sorts of things that genuinely make me unhappy to look at.

Method 2 was somewhat better, though it also returned quite a bit of material that I have blacklisted. Lots of cub art, for some reason, and then just a bunch of kind of generic furry porn which wasn't as viscerally off-putting as the stuff the first method returned, but also wasn't very interesting to me.

Method 3 was much better. Actually gave me stuff I like, and a fair amount of it - though most of it was stuff I'd seen before. Also it leaned very heavily towards solo pictures, whereas the other two leaned very heavily towards duo or group images.