TC20 is definitely far more lucrative. I started a 2nd account and am skipping right past TC13.
FWIW, I reset the TC20 odds tracking spreadsheet as there is some suspicion SGG may have changed the odds with the release of season 2. We had 3500 data points for season 1, so we know the odds there. For season 2, we only have 164 data points so far, too low to draw any conclusions, but here’s where we are at so far.