1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.e5 Ne4 and now:

A) 6.0-0 now Play the Open Games as Black and Play 1.e4 e5! recommend 6...d5 but is there anything wrong with 6...Be7? Play 1.e4 e5! says that White may be slightly better with 7.c3 d5 8.Bb3 but now only gives 8...Nc5. I think Black is slightly better after 8...dxc3! 9.Bxd5 cxb2 10.Bxb2 Nc5. 

B) 6.Bd5 Nc5 7.Qe2 now Play the Open Games as Black and Play 1.e4 e5! recommend 7...Be7 but what about the computer suggestion 7...b6! which seems stronger?