I looked at a few I was originally going to get a sierra but a number of things made me go for a jimny:
1. I could not find any hard top sierras at the time I was ready to buy (really did not want a soft top)
2. The headroom in the jimny was great as my head did not rub on the roof
3. I was looking for a 4wd to take the kids in (ages 2-4) and air con on a hot summer day makes a HUGE difference for that
4. I looked into it and decided I can build a jimny to handle what I want it to do (although it would not be a typically modified jimny)
5. This one popped up at a great price (3300 for a 99 jimny, 2 inch OME suspension 6 months old, Snorkel fitted, Roof racks fitted, sound system 3 months old, GPS with Oziexplora software with all the topographic maps loaded also hooked up to reverse camera and stores all the music/multimedia, not a spot of rust on it the interior is very nice the paint is a little rough but i didnt care, 6 month old arb rear air locker installed and arb air compressor and some aftermarket tyres which are only retreads so they will be going. Also the flywheel was machined, new clutch, new uni joints, new brake discs and pads on the front and the rear had been machined and new pads all in the last 12 months and new battery. Pretty much the guy I bought it off had spent a bit over 5700 in the last 13 months on it according to the reciepts I got with it - and it had fresh 12 months rego.

took it for a big test run it handled so well and drove so nice on the freeway.
6. There are alot of really awsome hardcore sierras around me, but all were soft tops and many had rust issues as well as even though they were jacked, none were set up correctly, they were stiff, they didnt flex, they were rough to drive etc - just wanted something a little different.