I've been a Ranger fan for a while (yeah, username is that Ranger...), I currently have two Rangers and two Explorers along with the F350 and the wife's Camry... The 3.0 is a good engine, just keep up on the fluids and it'll last a long time. If automatic transmission wouldn't hurt to shift it manually from time to time, the engine likes to rev (since it was designed for a Taurus it has a higher rpm camshaft) but Ford in their infinite wisdom makes it shift well below the torque peak so they are well known for being gutless turds... but then again I'm daily driving a '97 extended cab Ranger with a manual trans and a 2.3L so a 3.0L would be more peppy... There's downsides to Rangers of various configurations but whatever, I only go to shops for windshields and tires... I got my '97 for $450 with a bent I beam (towed out of a ditch with a chain from the middle of one I beam...), $150 in junkyard parts and some random used tires I mounted myself and I'm less than $1200 into it and have put almost 40k on it...
I'm not too brand loyal anymore, I'm just familiar with the drivetrain and wanted something reliable and decent on fuel so I got what I got... Everything has its plusses and minuses, the early 2000's are a good time for vehicles being a good balance of reliability, ease of maintenance and less fancy junk... the LS engines in GM's along with their fairly reliable transmissions are a good place to be, a 4L80 is going to be more reliable than a 4L60 trans but either if taken care of are fine, Ford's 4R70W and 4R100 and whatnot are apparently fine too but the 5.4L has issues in a few years, all can have their good and bad apples...