I just love brushed nickel as it starts of in a classy matte look. With a bit of care it keeps like that well, but let it go and it ages beautifully too. To an extend you can control the aging of it through care.
Here, starting out, it could give you a classy fit in and draw attention to the top. From there, depending on abuse, it could grow with the guitar or naturally age a bit and give an organic contrast to it.
That is what I would be tempted to do, but the save choice of course it chrome, especially if you want to keep it looking this fresh.