Welcome!

<--(Official Mud Salute)
Let me start off by asking a few questions:
1. Are you going to be taking this vehicle off road?
2. Are you going to be lifting it?
3. Daily Driver?
4. Do you care how much gas you will be paying?
All of these play a big part in the decision-making process. You will more than likely spend more in gas for a Land Cruiser than you would a Jeep.
My opinion, based on ownership of three Jeeps and two Cruisers (I owned a Jeepster Commando and a '75 CJ5):
Jeep: There is a lot of aftermarket support for Jeeps. Part two to that is you
will need aftermarket support, if you plan on taking it off road. The axles are fine in a stock configuration, but if you add 35" tires, you will be better off doing some upgrades to the drivetrain.
Both the CJ5 and the Jeepster were fine in their capability, but just did not feel "tough." They had a rather flimsy feel, in that the frames would twist under the body really easily.
I also currently own a '93 Jeep Grand Cherokee; it also feels very flimsy, and feels like I am driving a tin can.
TLC:I have owned a '66 FJ40 Land Cruiser, and now a '91 FJ80 Land Cruiser. The difference in quality is truly vast between the Jeep and the Toyota, in that both are very well built and very capable, not requiring much beyond stock to enjoy it off road. Then again, the Jeep is not too far off in capability out of the box, to keep it fair.
Both of my Land Cruisers have held up well over the years (the '66 did not have any major breakages, and had stock axles; while the '91 is new to me but has 239,000 miles on all original drivetrain).
You really need to take both for a test drive and see for yourself; cost of ownership should not be a factor in buying something you will not regret, because anything could always be better than it was. My opinion is that it requires less for a Land Cruiser to truly enjoy the experience, which is aided by the fact that not everyone has a Land Cruiser.
Bottom line: In my opinion, a 1991-1997 Land Cruiser is what defines an "off road" vehicle, and was built with this in mind - and you can tell.
Others may have a better technical analysis on the cost/performance difference between the two, but these are my thoughts on the joy of ownership above and beyond that of a Jeep.
I guess I just do not get the "Jeep thing."
