Also, including a pretty good experience per hour too. Any ideas out there?

Blue dragons, Aviancies, Brutal greens, Red dragons, Black dragon, and Green dragons? Basically all dragons :

Blue dragons, Aviancies, Brutal greens, Red dragons, Black dragon, and Green dragons? Basically all dragons :

 

 

 

+1 but always use a range pot when killing dragons, it speeds up the speed of killing the dragons so you make more money and get exp faster.

demons are also okay to train on

But not really good cash... Also, use Adamant bolts with a rune crossbow. If not, Mithril.

If you want good xp, there's fire giants. Not a massive income, but decent rune drops quite frequently. If you're more interested in profit go with blues/blacks though.

What makes Aviancies good for money?

most likely the addy bar drops.

if you have 50 slayer, bloodvelds are good exp... and they drop rune meds and alot of blood runes

~Avansies.~

Even without getting a chain drop, dustdevils can still give quite a bit of cash, but probably not as much as avansies. I assume that dustdevils would give more experience though, unless avansies have high hitpoints and very low defense as well.