Kyle and I had this same very conversation back at the March Pleasanton. He was answering questions about why the DSE was better than ours, and why ours was better than DSE's and it sounded like we both gave the same anwers......so here is the heavily paraphrased version......
We have both done a lot of homework and engineering on our products, and as a result you are probably going to be very hard pressed to find a performance advantage of one over the other. It is then down to what you like the look of (fabbed or hydroformed) and what "name brand" you like more.
Kyle and Stacy are great people, and if you go with those guys, you are going to get a great product. We're pretty good guys too (might be biased here

) and you will great a great product. Either way you are going to have a great piece you will have a lot of fun with.
I know this really wasn't an answer, but this is the answer that I give when asked......