nicola surgeon hailed shock winner of tv debate , according to one poll .
scotland 's first minister left ed miliband squirming during an attack on tax .
tories immediately mocked up poster of tiny ed in miss sturgeon 's pocket .
other polls suggest mr cameron came out top at 40 % and miliband trailing .
mr clegg turned on mr cameron at the first opportunity after five years in coalition , accusing him of relishing spending cuts ; .
the prime minister rammed home the tories ' economic message , by indicating each leader in turn and delivering the simple verdict : ` debt and taxes ' ; .
ukip 's mr farage stunned his rivals by launching an attack on foreign hiv sufferers using the nhs for treatment ; .
labour 's infamous ` no money left ' note , left in the treasury in 2010 , was brandished by an angry prime minister ; .
mr clegg challenged the labour leader to apologise for his party 's toxic economic legacy -- a challenge mr miliband ducked .