Here's a nice summary of all the top parties.
KKE: Greece should exit the eurozone and the EU, introduce a 45 percent tax rate for major capital, end armament deals that serve Nato needs and implement central planning for production
SYRIZA: Suspend the servicing of the debt, negotiate to erase a large portion of the public debt, add a pro-growth clause to the repayment of the rest of the debt; tax the wealthy, reduce armaments, combat corruption
Democratic Left: Reduce state expenditures for armaments and medicine, combat tax evasion effectively, reduce the public deficit more progressively, widen the tax base and impose heavier taxes on the wealthy and on capital
Greens: Redesign and improve tax system, reduce military expenditures, end economic privileges of the church, prioritise green economy, reduce tax for small & medium-sized enterprises
Independent Greeks: Create a new government-owned Greek investment bank, and transfer into it the property of the state, pension funds, state-owned public utilities, gold and money from all dormant accounts in banks
LAOS: Introduce a second currency for two years: use the eurodrachma for domestic transactions and keep the euro for transactions abroad; impose duties on imports
Golden Dawn: Denounce the memorandum, refuse to pay the odious public debt, nationalise the banks, exploit the hydrocarbons in the Greek seas, abolish party funding by the state