comparing a transcoder to an encoder is comparing apples to oranges.
shrink is the best transcoder out there if you use the advanced settings.
dvd-rb uses your choice of a number of encoders (some free, some not, some better than others) most of which will be better than any transcoder because they are RE-ENCODING the data. This is also why it takes longer.
your statement is in esence still true, but it's like saying that roger clemens is a better pitcher than my little brother...true, but no comparison.