POPULUS POLLING (Wonder why they differ from other polls?)

I will let you come to your own conclusions, I have already said my piece in the past.

POPULUS Respondents (Weighted number used) Tories 543 (576) Labour 644 (597) UKIP 250 (82) LibDems 168 (206) Greens 75 (43) SNP 56 (42)
— General Election (@UKELECTIONS2015) October 21, 2014

http://www.populus.co.uk/wp-content/uploads/2014/10/OmOnline_Vote_20-10-2014_BPC.pdf