I shot a couple whitetails with Rage and really was not impressed with their penetration or durability. That was a number of years ago, so the design could be a little sturdier these days; never tried the Hypodermic.
BHs are a weird subject in which you'll get tons of conflicting opinions and testimonials. I can tell you that I used to be a big fan of Spitfires, until I shot an elk with one. Those are possibly the best deer-sized game BH out there, but although I recovered the elk, penetration was not great. Tekken II's I tried at one point - 2 elk and an antelope later and I was set... but they quit making them and I just can't bring myself to shoot the T3's, they are nothing like the T2 design. I read the Rocket Steelheads were the best-penetrating mechs on the market. A couple years ago I shot a bull in the shoulder, the arrow penetrated about 4" and I lost the bull. Never doing that again.
I shot the standard 4-blade Muzzys years ago and thought they flew okay, but I do recall them sailing right through the chest of a couple deer without slowing down and leaving terrific blood trails, so I'm now back to the smallish 4-blade, fixed design. Muzzys sort of drove me crazy with the necessity to hypertune for them, so last year I settled on Slick Trick Viper Tricks. Unfortunately, I have not had the chance to send one at an elk yet, but I do like the way they fly. I'm old now, a little more of a gun hunter than I used to be, so spending hours upon hours farting with sensitive archery gear isn't really my thing these days. I like simple, use a Whisker Biscuit, a Black Gold 4-pin sight, I Fletch my own arrows with a little offset and with a modest spin those Vipers fly great.
So what's the best elk BH? Who knows. The only thing I'm really convinced of at this point is: fixed blade that flies true with your set up. There are so many different designs out there with all manner of snazzy packaging and marketing ploys and TV hunters getting paid to plug for them. The more I hunt the more I believe that simple is good. And there is a reason that Muzzys and Slicks have been around as long as they have.