WWJD? smirk

I would go with both. Recovery from an on-site backup is much quicker than online, but I do like the online backup in case of the meteorite smashing the house scenario or something like that.

What can you do with CrashPlan that TimeMachine won't let you do. You do know if you want to exclude folders you have to do that out of Time Machine preferences. TimeMachine Editor is just used to set the schedule.