Don't look at Italy or Israel for PR

Israel and Italy are always used, especially by First-Past-the-Post advocates and lazy journalists, to tarnish the case for electoral reform. Both countries employ systems that are at the furthest extremes of proportional representation and that none of us, even the most ardent reformer, would ever dream of recommending for the UK.

Here's a useful article as to why they aren't and what the issues really are for the UK.
Make My Vote Count