I have found, from personal experience, the funny thing about Mitsubishi's is that people seem to either love them or hate them - I have not found too many that lie in between. I've also found that most pure blood Mitsubishi owners will defend their car like it's their first born child!
The Challenger is essentially a Triton Wagon without the leaf sprung rear. The engine is the same and fitout is almost identical. Unfortunately for me, I bought a dog, and sounds like Swift12 did as well, but there seems to be as many people with great cars as poor ones - the trouble is the percentage of bad ones. As I have said before, in my opinion the Tritons are by far the best looking 4x4 utes on the market, they are very capeable and they have some great design features - GLXR Super Select etc. and the Uni Joint puts the one in the Hilux to shame. It's just a pity the build quality doesn't match the warrany, features and price. If you get a good one, you really are on a winner for the price and inclusions, however if you are unlucky enough to get an ordinary one, the hits will just keep coming.
Also, even though the Triton and the Pajero are both made by Mitsubishi, I think it is a little unfair to compare the two, they really are cheese and chalk. If the Triton and Challenger got the Engine and transmission, as well as some of the interior / overall build from the Pajero - I think it would be a completely different story and I would still own the Triton.
Oh What a Feeling!!