64met,

I would go with the 7700 in a heartbeat.

I struggled with the same decision for a long time and I finally went with the 7500 for my application and have no regrets.

Outlaw has been around for a long time and they have proven themselves over this time period.
Emotiva is an up and coming company and they appear to make some fine equipment but think Outlaw is the way to go.
_________________________
Epson 3500 3D projector
93" Carl's Place Flexiwhite DIY screen
Outlaw 976 Pre/Pro
Outlaw 7500 for LCR & L/R surrounds
1- Emotiva Mini X-A100 for rear surrounds
2- Outlaw LFM-1 EX subs
Oppo BDP-105 Blu-ray/DVD/SACD player
Outlaw LCR (Snell Labs) for center channel duty
Tekton Lore monitors L/R
4- Emotiva ERD-1s surround speakers
Monster HTS3600MKII power center