Depends what you want, who you are hauling, and how much moola you want to spend. I see you live in Palmer (I'm in ANC). If you want to do some serious alaskan offroad, you're gonna need big tires, big lift, etc... I don't know about the 60, but if it's SOA (spring over axle), it might be easier to get a bigger lift. 6" is max on an 80-series, which is great, but it costs a fortune, and so does a 4" unless you jury-rig one together with J-springs or take the 2.5" (like me) and combo it with a body lift. Also, you're gonna beat it up (Alaskan trails get overgrown), which might be easier to justify on an older rig. Also, it might be easier to lock up a 60-series with 2 auto lockers if you can disengage the front. AWD & the 80-series you're stuck with auto lockers only on the rear (Aussie lockers are awesome, even on this ice we have) and have to do ARB/selectable on the front.
If you're just hauling kids and/or occasionally camping, go 80-series all the way.
Personally, I'm a big fan of the 80-series and highly recommend them, but I've seen some nice 60's around town and a couple of 80's (most are stock). If you do go with an 80-series (heck, even a 60), or are interested in offroad look me up (same username) on the
Matsu Valley OHV boards, perhaps we can turn a wrench sometime.