We're all biased to the 4Runner but here is my take.
The Rodeo/Passport from what I've heard and seen is that they are not so reliable, specifically when they put in the updated 3.2 V6 in 1998 I believe. I heard that they have Dana 44 rear axles with disc brakes in the rear though.
The 2nd Gen Pathfinder is unibody. I heard the engine and drivetrain is fairly bulletproof but the 3.3 V6 was slow. They updated with a 3.5 V6 in ~1999 and I heard it performed really well.
The Montero Sport I kinda dig. I always thought the one from 97-99 (pre facelift) looked mean. I hear the Mitsubishi V6's are known to burn oil but they have really strong drivetrains.
The 4Runner will always be my favorite though. Really reliable engines and bulletproof drivetrains and they perform really well on and off road. That and I think they look the coolest.