Just one data point. I opened a business account last month. We tried to fund with a chase credit card, but the banker told us it would generate a cash advance fee. I opened a personal account only last week and funded it with a chase credit card and it went through without a fee and it appears to be coded as a purchase. I won't know until the statement closes whether it gets miles, though.

Edit: Scratch that. I WAS charged a cash advance fee on the deposit to the personal account. Just saw it on the account today. Grrr. There should have been a warning.