The 2808 would be an excellent choice.

However, if you are going to do separates and and attach a separate amp. you can simply move down the AVR chain to get the features you want and let the amp do the heavy lifting. That might mean that a 1908 would fit your needs.

The general equation is an AVR provides more features/less power while separates provide fewer features/more power.

One other question for you to answer - which option will make you happiest.