I would go with 2" lift springs and longer shocks and new spring isolators. It is really a matter of preference\budget and\or what your want to do with your lift (wheeling\not so much wheeling). Springs would be best for wheeling a lot. Spacers would work too, however, if you run your sway bar links disconnected, you possibly run the risk of a spring popping out. If you really want that extra 1/2" you could always add a 1/2" spacer front and rear
IMO I am looking at a 2" coil spring setup w/ longer shocks, 3/4" spacer for the front, extended link ends, and a JKS Adjustable Track bar.
If you want to look at an excellent write up on a 2" spring lift, look at this thread it features the lift mentioned *gbny94
Just remember, stacking spacers is not the wisest idea. You can run the 2" springs with a small spacer to gain what you want to achieve (2 - 3")
Hope this helps.