Which is the more likely as the next UK government?

[International Brotherhood of Bernard]

I think Cameron's going to get the boot for the same reason Reinfeldt did in Sweden, that is the center-right bloc was without a Parliamentary majority from the onset (which is a horrible place to be in when you're the incumbent government, that situation is part of what felled KRudd down in Aus) and face stiff opposition on their right flank, handing victory to the left by virtue of not losing as badly/making marginal gains. And it's not like the SNP would oppose a Labour government barring any truly horrendous actions by Labour, considering they've staked their entire campaign on Tory-bashing.