Soldato
For my own part, I couldn't care less about a manned mission to Mars. I think we've seen too much of Mars and I think it's a shame that most space missions lately have just been pootling around our own neighbourhood like that. I want to see more of the outer planets and their moons. Send orbiters to Uranus and Neptune. Put landers down on Europa and Enceladus. You'd get a lot more science done for your buck than endlessly sending more rovers to Mars. Mars is boring. The moons of gas giants are far more interesting.
Also much harder to get to and much, much harder to get anything of any significant mass (such as a lander capable of looking for life) to safely.
If you think Mars is boring you're fooling yourself