There';s a reason they've been around since the wars, they are the original and real 1/4 ton 4x4, if you are looking at hard pulling or hauling, just like any other vehical, look for the better models, if you want to pull, get a tranny cooler, and go with the Dana44 rear. All vehicals have thier share of problems, but as a Jeep owner of YJ's and Cherokees, they are a GREAT 4x4, if you have the money, go with the Rubicon models, they have the upgraded components. They can outwheel a hummer (drug dealer grocery getters) right off the lot.
A short wheel base makes for the best 4x4 (it's why you dont see Toyotas, and full size in rock crawling, or other technicallly demanding events), and the solid axles give you the strength, as well as the ease of installing a lift kit. Indpendent suspension is okay if you want a vehical that rides like a car, but you'll pay more for the lift, and you'll never get the kind of strength or axle articulation you'll see with solid axle...having said that, Toyotas are a good 4x4, just more than they are worth.