By Aaron Maasho and Drazen Jorgic ADDIS ABABA (Reuters) - Ethiopians voted on Sunday in a parliamentary election that is expected to hand a landslide win to the ruling party, which boasts about delivering strong economic growth while opponents say it has trampled on political freedoms. In power for almost a quarter of a century, the Ethiopian People's Revolutionary Democratic Front (EPRDF) has overseen the transformation of a nation that was on its knees after communist purges and famine to one that now attracts foreign investors. But critics say it allows little room for dissent. The outgoing parliament of 547 seats had just one opposition member. Experts do not expect a dramatic shift in opposition fortunes in this election, which is set to return Prime Minister Hailemariam Desalegn to office for another five years. "I will give my vote to the ruling party because I do not have faith in the opposition parties’ ability to govern," said graphic designer Yohannes Seife, 24, speaking before state radio announced that polls had opened.