Hydropower is better than Geothermal.
Hydropower is better than Geothermal because Hydropower is product by water similarly Geothermal however Geothermal is powered by water and steam.
Geothermal gets out by geysers, hot springs and also comes out of the pipes of the power house. Also Hydropower is a renewable energy source with is good for the environment as well as Geothermal.