At levels in the 70's it's around 70k/hr, so it's really a choice on preference. Once you get 99 chins max out around 100-120k/hr, so these are better xp. I'd personally do these purely because you get charms aswell.
Well.. I personally think they're better because of the charms. They're around the same exp at higher levels. The sprites are slightly better but I think it all comes down to what you want.