Getting to Mars seems to be the most feasible option at this moment, because we already have a lot of answers for this route and things like radiation shield (I

Getting to Mars seems to be the most feasible option at this moment, because we already have a lot of answers for this route and things like radiation shield (I bet this will be deflector shield) will be sorted out soon. But when we'll figure out how to build something in Venus atmosphere, it's quite likely we will already have working fusion reactors. And they open the way both for faster space travel and for heating and industry on Titan, which means that it's more comfortable option for us than Venus. Still, not a second choice, because we'll have to build a base and some industry on the Moon anyway.