man.... I love me some Mars but Titan really takes the cake when it comes to how fast can you build up a settlement where you can survive, thrive and have better chances at finding life...
methane a.k.a ch4 a.k.a. natural gas a.k.a -- TONS of fuel exists in huge quantites on Titan in the form of lakes
and now we hear stuff about underground oceans there ...
http://www.guardian.co.uk/theobserver/2010/may/09/space-saturn-titan-earth-nasaseriously?! I got $$ to the first private satellite going there