4300 @ $799 was a no brainer for me. More inputs, more outputs, more power, more features. 3300 does not have HEOS if that matters. The others both do. You never know when you might get the urge to add two more channels for 7.1 or Atmos or another zone. If the budget is tight, I'm sure the 3300 is a great AVR, but I know I'll never regret that extra $200.