{*} Want to be a Developer for FeralHeart? {*}
I think that you should perhaps try out both and experiment. Then when you have the result of both, see whichever you like best. No matter the result, there is no doubt the community will enjoy the looks of your textures. <3
I'd think feline since their faces are more rounded and stubby so you can get that cute hampster face more easily than with the canines ^^
You should definitely try both and experiment, as Shurtle said above. Though, I think that with the feline textures it would be better.
I'd do feline, because their models definitely have more width to work with.