problem is its much like union elections you've rarely got anything more than a paragraph of text on an obscure web site to acxtually find out who the heck you're voting for.
so its just blind roulette.
You're putting the cart before the horse. The higher the turn-out for council elections, the more effort candidates put in to differentiating themselves and making efforts to secure your vote with things you want. With the dire turnouts most areas see, they barely bother because they believe that people will just vote along the lines of the current national government.