I have had the DC1 and currently have the SSP25 and between the two the Classe sounded much better and was a whole lot easier to use. I wouldn't assume that either of their updated versions (MC1 vs SSP30) could make the sound difference any closer. The Classe also has an analog bypass whereas the Lexicons always process in the digital domain.
However if you like to play with the different sound effects the Lexicon clearly has the advantage of options.
However if you like to play with the different sound effects the Lexicon clearly has the advantage of options.