I was in UA international F earlier this year on an award flight LHR - SFO (B777). Whilst the UA First Suite is old and dated by comparison, I found them to be much more comfortable than VS UC and got a better nights sleep.

The cabin crew were very courteous and the service excellent. I'll be flying them again in F for sure.

Can't comment on the routing, but seeing that RG have cancelled all but about 4 of their international routes as of today, getting anything via GIG might be a bit difficult?