If you can constrain yourself a reasonable OO system in Perl why can't you constrain yourself to a nice subset of the syntax?
I can, I can deal with overly verbose maps or shifting variables off @_ but Ruby provides some similar features to Perl 6 right now. That is an advantage on its part. It's just not compelling enough to make me switch as Perl can do most of the rest just fine.
See the CPAN module Moops.
I'm thinking more of things like the p6 arrow. Moops is part of the first part, things I can already do in Perl that are in Ruby.