this question is pretty subjective.
a lot of people are just going to say it will fell better mixing with the oxy because they like that better than the hydro itself. either way, nothing too productive is going to come from this. so i am going to close it.
but you should note, when you mix CNS depressants from different classes of drugs-- say hydrocodone + alcohol--you are running an increased risk for dangerous reparatory depression. doesn't mean people never do it. just think about it first, and, if you do, take it into account when choosing your dose.