Dumb question here!!!

Thinking of raising my own snake rodents. My wife is not cool with the idea because of the smell.

I have a collection of 7 bp's that will be getting larger soon.

So my ? is. What smells the worst?

Mice - Wife's pick
Rat's
Gerbil's - I want to use gerbil's

She will take a look at all the feedback and help with the choice.