The Champion never was a Champion, it's just good marketing hype.
The toilet that it was modeled from, was the Toto Drake with a few changes.
Here is a note from a customer about the Toto Drake with Sanagloss:
The new toilet is GREAT! My wife reports the installer was done in
about 40 minutes, was very courteous, even asking if where he parked
was OK and not going to interfere with anyone. (Which is very nice
since it is hard to figure out which garage goes to what house on our
block.) He did a fabulous job, even hiding our incorrectly installed
(by the previous owners) bathroom floor.
Our 6-year old thinks it is great, especially since it was his flush
that sent the old toilet overflowing through the flooring and dripping
down through the kitchen like some horrible Hollywood movie.
There are plenty of toilets that work well.
The link below has good information.