Big picture wise, I'm sure it is statistically be safer than fossil fuels (counting the problems of fossil fuel pollution and the environmental problems / lives lost due to the extraction process). But looking at the power plant itself, and focusing on the worst case, the only other form of power I can think of with the potential to create a Chernobyl type disaster is hydro (as dam failures can create pretty widespread destruction and kill hundreds of thousands -- see the Banqiao Dam disaster). Coal / oil / gas plants that explode kill people too, but generally only within the plant boundaries.
Even a hydro disaster won't necessarily make 1000 square miles of land uninhabitable for 200-300 years, ala Chernobyl. The only comparable thing I can think of in the energy realm that comes close to that is coal mine fires (ala Centralia PA), and that's at the extraction level, not the plant level.
I'm actually struggling with your assertion that nuclear power has killed more people than solar... peer reviewed estimates of Chernobyl vary between 4,000 and 25,000, is there a solar disaster on that scale that I'm not aware of?