May 26 (Reuters) - Czechs will elect a new parliament on May 28-29 in a vote pitting leftists, who promise to hike taxes on the rich and raise social benefits, against rightists who aim to cut spending and say a leftist victory could bankrupt the state. The following are key facts about the central European EU member's two main political leaders competing in the election:
JIRI PAROUBEK, SOCIAL DEMOCRATS:
The 57-year-old trained economist has been dubbed "Bulldozer" for his authoritative way of handling the 132-year old Social Democratic Party.
Paroubek, prime minister from 2005 to 2006, has campaigned on a pledge to shield ordinary Czechs from the swings of the free market -- like the risk of unemployment -- by raising taxes on top earners in order to afford more generous social benefits.
Hiring political marketing specialists from the United States, he has built the party's agenda around opinion polls and has drawn inspiration for bold rhetoric from Robert Fico, Slovakia's highly popular prime minister.
However, Paroubek has alienated many Czechs due to his past as a manager in the Communist era, his tough approach and a somewhat wooden manner. He is adored by some older voters but is particularly unpopular among younger Czechs, making him both the most liked and most disliked politician in opinion polls.
One of the portly leader's key moments came last year when his party toppled the centre-right cabinet midway through the country's EU presidency, throwing the country into political chaos just when it was under close scrutiny in Europe.
His lowpoints include a rally last year at which a crowd of young opponents within his own CSSD party, organised over Facebook, pelted him with eggs. In 2008, a businessman with suspected links to the underworld was shot dead at a launch party for a book written by Paroubek.
Some party leaders from the centre and the right-wing have said Paroubek is an unacceptable partner for them but that they could work with other Social Democrats.
PETR NECAS, CIVIC DEMOCRATS
Necas unexpectedly took over the battered right-wing Civic Democrats (ODS) last month when the previous chief, Mirek Topolanek, resigned after a series of public relations gaffes.
The party picked Necas because, unlike many other ODS leaders, he is seen as untainted by corruption scandals that have rocked the traditionally pro-business party.
The 45-year-old trained physicist has been a long-serving ODS vice-chairman, whose main expertise is in social affairs.
A mild-mannered conservative from the country's east and father of four, Necas drives a small, cheap car and had been hardly visible among the party's leaders until he took over the election campaign.
Analysts say that because of his short time at the party's helm, few Czechs have formed a concrete opinion of Necas.
But many people see him as honest, and opinion polls show he is much less divisive than his predecessor and Paroubek, as well as less unpopular. Necas was deputy prime minister and social affairs minister in 2007-2009.