Between the Toyota and the Mitsubishi, the 'yota's better quality and should give you less problems over the long haul, plus have a better resale value. Moot if you aren't going to keep it more than a couple of years, though.
I have a '96 4runner and it hauls a two-kid baby trailer and bike (wheels off) inside, 3 bikes outside, all our bike stuff and my small tool box plus 4 adults and a baby. I don't, however, have mounts for bikes inside, nor do I ever fold the seats down.
The only thing I don't like about the 4runner is the 15mpg (3.4l engine). Everything else, from off-road capability (4wd, hi and lo) to a truck-like but fairly comfortable ride to haul capacity, I am very happy with.
Hondas have a good reputation and the one guy I know that hauls bikes in an Element likes it.