Star Choice should win this contest hands down.
1. They use Motorola receivers. XVu used Echostar type.
The Motorola Digicipher 2 system is far superior to
Bell's use of Nagravision encoded MPEG-2.
2. Compression levels are much different.
Look at Lyngsat to confirm, but compare the channel loading
(signals per transponder) of each service. Star Choice
typically has 6 to 8 channels per transponder.
XVu typically has 10 to 12 (or more).
Many of the Canadian cable channels (Showcase, TMN and others)
make their first trip to satellite on Star Choice's datastream.
XVu actually takes some channels from this source and re-encodes
them for retransmission. So they are a second generation signal
in many situations.
I could find a few examples of less than great off-air signals on
Star Choice, but it has to do with where the signal is picked up.
Off-air small market signals such as Regina, Saskatchewan do not
look great when compared to identical signals in major markets.
(Check out CBC-Regina on 305 versus Edmonton and Calgary CBC
on 306 and 307). BUT--XVu has the same problem with certain
off air signals.
Star Choice feeds most of their signals from regional uplink locations
directly. Bell collects everything with a huge fiber optic network
and delivers them to Toronto (North York). These are added to
satellite received signals in that location, and all is retransmitted
to NIMIQ satellites from that one location.
Overall, I would say that Star Choice delivers consistently better
signals to their customers.
Mike