I'll tell you right now that Catalyst has by far the best reputation amongst Perl developers in terms of a rapid application development MVC framework.
In terms of "pure" MVC I'm not sure there are even that many "mature" or at least production-ready alternatives.
If Catalyst doesn't seem right to you, then you could build upon the lightweight framework CGI::Application to suit your needs or take a look at some of the lesser known MVC frameworks like PageKit and Maypole.