I think everyone but Vince would be fond of rats, well him and Ashino who would probably scream and call it filthy LOL.
I think Ashton would want a small garden, like one in a large window, maybe not a whole outside garden. He loves roses but they are really hard to grow and need space so he'd probably grow something medium sized.I think there's a type of roses that are really small, maybe those. I'm not sure what types of flowers are best for that. Sadly I myself don't know much about plants as the guys would, I do garden actually, I've got cucumbers, tomatoes, beans, and a bunch of calendula flowers this year!
Ashton likes the goriest, violent movies so he probably would like Rob Zombie movies. (I'm a scardy cat and don't like gore so I don't know much about his movies). He definitely likes things with practical effects or big gooey monsters, and he doesn't care if the story doesn't make sense as long as it looks cool.
Ashton's room has a lot of computer stuff in it that runs pretty hot as well as junk- i mean discounted computer parts cluttering up the place. Also, I imagine that his own body heat contributes to that but I don't know if that's how it works. It's actually a small contradiction that he wears that big coat but hates being hot, I think i made a small mistake but oh well.