Rubbing alcohol is poisonous and grain alcohol isn't. However, if you let it dry and rinse it, I don't think it really matters.
Both are poisonous... just one to a lesser degree. Very small (trace) amounts of ISO won't hurt ya, but most people blow it out real well and rinse. It's an effective, and inexpensive solvent. Good points on the smell, and that vodka/PGA is also effective. It's hard to get Everclear in all areas of the country since kids are reckless and drink it until they OD (and die of grain alcohol poisoning) because they don't know better.

(Good time to mention this to your kids!)
I use the 91% isopropyl alcohol once in a while. I mostly just rinse with water though. I always blow it out well and clean it well after using.
Also, keep isopropyl alcohol and PGA away from kids and pets!
BTW... make sure that if you use isopropyl alcohol, the ingredients say "isopropyl alcohol and distilled water" AND THAT'S IT. Sometimes, rubbing alcohol is sold with oils for rubbing into muscles and such (topical). DON'T want to
vape that. People call it "rubbing alcohol" but some types can have fragrance, oils, other stuff (menthol) whatever. So "isopropyl alcohol" is a better term.