It depends on what you mean. In our solar system, no other planet can currently sustain carbon based life forms, so, since you couldn't actually stay alive on any other planet (in our system) there is no real way to answer the question.
Mars
The inner or terrestrial planet that we could most likely live on is Earth. Mars would be a far distant second.
The question is a contradiction in itself
Jupiter is the second brightest planet after Venus.
what is the second closest planet from the moon
So far the answer is Earth... But we are still looking around...
Planet Earth
Because it is simply.. The only planet to live on.
No, you cannot live on the planet Venus. Venus is the second closest planet to the sun which means that the environment is extremely hot and unbearable for any type of life to live on it.
mars
t-rex
The inner or terrestrial planet that we could most likely live on is Earth. Mars would be a far distant second.
scientist have said there is a possibility to live on mars but its not yet proven Mars cannot support human life, the only planet that we are aware of that can is the earth, therefore earth is the best planet to live on. Mars is WAY to cold to live in, Earth is the best place because it is not to far, or to close to the sun. Mars also does not have the gases that are needed for us to live.
Probably Mars
The question is a contradiction in itself
venus is the second planet
By far, The Dave Mathews Band is the best live rock band to ever grace the face of this planet. The End.
Venus is the second planet from the sun.