Well the big "three" in boxes are Edge COMP, Bluechip FMS, TST PowerMax³. You already list you have a VA box, so the "timing" advantages of the COMP are not an issue here, this is one thing that appeals to most buyers.
You don't list weather you have gauges or not?
If you don't, and wish to use the functions of the FMS for gauges its a good buy. Also the PowerMax³ has EGT and Boost readout, as well as oil pressure on one setup.
The FMS has a adjustabilty of 0 to 63%... . so I would imagine going through the levels one by one could be cumbersome, but it does have a all out race selection you could punch up quickly. The TST has 10 levels, and the COMP has 5 levels. So obviously the COMP has the advantage on "Adjusting the levels".
COMP = $700 or below (shop around)
TST = $849
FMS = $1095
I personally have the COMP and love it. I intend to try a BlueBox sometime this fall and dyno/dragrace it vs the COMP. Some of its features have peaked my curiosity.
Edge COMP
BlueChip FMS
FMS DEMO - Very cool
TST PowerMax³
I suggest visiting each of the websites I listed. Then do a search and read old threads about each one. Pick which one you think you like the best and go with it. All three companies are highly regarded by its customers. I have only personally dealt with Edge... customer service is exceptional. I have been in contact with Chip at Bluechip..... and liek I said I hope to test a FMS soon... once I save up the funds for it. Yes I intend to buy it... . that way my "Tests" won't be considered biased.
Hope this helps? Since you have an auto you might want to consider transmission temp gauge in your plans.