I have always read that geometric patterns should have 'curvy' quilting. I don't totally agree. I like the quilting to be like the geometric pattern with MAYBE a bit of a swirl here and there for interest. That's just me. Here's a similar pattern at Quilter's Cache. It's called Interlaced Blocks. Maybe you can get some quilting ideas there (page 3)
http://www.quilterscache.com/I/Inter...ocksBlock.html