I already send feedback to Polldaddy regarding Polldaddy plugin for WordPress but after several weeks I still didn't get reply nor plugin was updated, so since authors are following this forum they maybe get notice.
Thing is that there are some strings that aren't wrapped in gettext functions, so they can't be translated. So here are they.
On page for new custom style, most of the options are not i18ned. They are in file polldaddy.php on lines 2143 to 2975. Note that there are some values from dropdown list that don't need to be i18ned, like sizes, font names etc. but I think that you can figure that out.
On a page for editing ratings, labels are not i18ned (I belive that they are pulled from polldaddy.com). This is on lines 3320 to 3361. Note that first td is i18ned but second one uses value like $settings->text_votes and this is what is not i18ned.
One more thing I'd like to suggest are better plural forms, like described on http://codex.wordpress.org/I18n_for_WordPress_Developers#Plurals
After you fix this, please update this plugin used on wp.com since over there I noticed this issues at first.
Thanks in advance