I wonder under a more PR based system how the third party candidates would fair. After our last election someone did a chart to show how it would have turned out if PR had been introduced beforehand, and UKIP would have done very well out of it (despite the fact that they campaigned against it back when the Lib Dems were proposing it) but under the current system they only got one seat.
Here's the Beeb article about it:
http://www.bbc.co.uk/news/election-2015-32601281