Personally, I'd go with the SC-2 > digi-UA5 > JB3 setup for these reasons:
[1] The NT4 limits you to XY, while SC-2 offers flexibility for coincident (XY) and near-coincident (ORTF, DIN, NOS) configs
[2] The Oade digi-mod UA5 offers greater flexibility across the board than the Mic2496: broader feature set, better customer service/support, etc.
[3] I don't think you should dick around with 24-bit laptop recording at this point, something the Mic2496 would require
[4] I've never really liked the NT4 recordings I've heard. But really, the first three are the biggies.
FWIW.