just the names of those knives is more tacti-kool than I can handle.
Haha

Yeah, I've owned both, and I will admit that I thought they were a little tacti-cool as well, but they also both performed very well.
For what it's worth, I sold both of those knives, but I only regretted selling the Rapid Response XL. The Helix is a lot chunkier than it seems when you look at images and videos of it, and it really isn't the most comfortable carry in either the hand or the pocket.
The only thing I ever had an issue with on the RRXL was the tip-down carry, which drove me absolutely insane. I ONLY carry tip-up when it comes to folders, so I couldn't hold on to the RRXL, but if they ever made a Tip-up carry version of it, I would gladly by another one again in a heartbeat, even though my collection has escalated significantly since I orginally had the RRXL (went from that price range and now have mostly customs or Shirogorov knives in my collection).
So, I would recommend the RRXL over the Helix almost every day of the week, but if tip-down carry is as much of a deal-breaker for you as it was for me, then you might either want to get in touch with someone who can drill and tap you new holes, or look at something different all-together.
Oh, and in terms of strength, don't worry about it. They will both do more than you will ever need them to without much complaint. Most knives will.