I preferred the handling of the Jeep to that of the Exploder, as well as appearance etc - although that was in older models, but I still prefer Jeeps to Fords.
The 4.0L is an I6, not a V6. It should get a bit better mpg than the V8, but the V8 makes better power, which may not matter if you don't tow. Both are great engines and should last a couple hundred thousand miles with reasonable maintenance.
Give 'em both a thorough test drive & see what you think.
1995 5.2 ZJ Sold... but still in the family