Oppo 95-Integra 80.3 connection

Am replacing my low end Sony DVD player....
When hooking up an Oppo 95 to an Integra 80.3 which connections will yield the best audio...
1. HDMI out of Oppo into the 80.3 and let integra handle audio and video
2. HDMI out of Oppo for into Integra for video. RCA outs from Oppo to RCA ins on Integra for 7 channel audio
and/or
3. XLR outs from Oppo to XLR ins on Integra for 2 channel audio for listening to FLAC files or audio CD...

the rest of the system is:
Sunfire 7 channel amp
Sunfire sub
Revel Performa M22 LR C32 Center S20 surrounds..

All comments appreciated...