Delta now posts miles on the same day of the flight. AA, UA, USAir, Hilton usually credit miles a few days later. Bank Direct sends in accounts info to AA a few days after the end of the month and thus posting on AA could be 4 or 5 days later.
Hyatts, Priority- post points within 3 to 5 days. Marriott can take a week with followup emails required about half the time. Choice is extremely slow - many times 2 or 3 weeks later and several times I had to fax in the receipts to get points credited.
Qantas is terrible. They ignored my emails.