Fantastic lights - and the build quality is spectacular. (My 2 year old nephew has done his best to drop, crush, slobber on, and poke holes in my most recent HDS - and he has yet to even scratch the finish.)
If you want the brightest light with the latest LED, I'd definitely consider 4sevens' Quark line with the XP-G. He's doing a great job of bringing the newest LEDs into production lights very quickly. But the funny thing about my HDS is that while it's not my brightest light, or my smallest, or even my coolest, it's the one I trust most - and the one I usually find myself taking when I need to know my light will work. Although I love having a 300 lumen P7 in my hands, I don't usually need that many lumens. The HDS is bright enough for just about anything, has a great beam pattern, and is rugged as hell. If you want a durable, versatile light that you can rely on, you can't go wrong with the HDS. They're first class. (For what it's worth, I also have four older HDS lights, too - and all of them still work like charm.)
FYI, the *recent* HDS (now called RaLight) that I purchased had a neutral tinted LED - I loooove neutral tints - so I'm not sure whether it has the same beam profile as his other LEDs. I've always appreciated how Henry and Don (McGizmo) pay attention to their reflectors to create a really useful combination of throw and flood. But this means that HDS lights are slightly more suited to medium-distance uses. For true long-distance throw, the quarks generally have a tighter hotspot that throws better - but they're harder on the eyes at short and medium ranges. (If I remember correctly, Henry also offers a "narrow" beamed version of his lights that throws further; it sounds like this would be right up your alley.)
I've got 5 HDS lights here, and I've never regretted purchasing a single one. Out of all my <insert embarassingly high number of> lights, the HDS and my Draco are the ones usually by my side.
Hope this helps!
- FITP