I've new using Zwickey Deltas for 35 years plus or minus. Switched to Magnus 1 for a little while and they did great, but still went back to the Deltas. I have some Cutthroats to try but haven't shot anything with them. I will always have a couple Zwickeys in my quiver.

And it has on at least one occasion field dressed the deer for me   :eek:    :eek:    

I'm glad this thread came up!  You see, I have been sort of a broadhead junkie since 1973!  I have used Bear Razorheads, Ace Standards, MA3's, Bodkins, Snuffers, Woodsmans, Magnus I and II's (with and without bleeder blades), all kinds of replaceable blade broadheads (back in my wheel bow days), Grizzly's and every model of Zwickey except the Cliff.  The only reason I ain't used them is because they are illegal in N.C.  I even completed my "Zwickey Grand Slam" on deer this year.  
The reason I have used and tried so many different types and styles is that I don't shoot heavy bows and I'm always trying to balance penetration with cut size (making heavy bloodtrails).  Always looking for that "perfect" broadhead!  Well, guess what?  There ain't a "perfect" one!  If you get a great bloodtrail with one today, you might not on your next shot.  I used to think a big, nasty broadhead would/could make a difference on a gut shot.  It might, but waiting long enough before taking up the track has helped me recover more deer.  A broadhead that blows through the rib cage on a broadside shot not might not give enough penetration on an angled shot.  An exit wound helps with blood on the ground.
So what's the answer?  Pick a good, solid, COC broadhead that flies great from your set-up, that YOU can get sharp, and practice with it so you have confidence in it.  For me that is a Zwickey Eskimo or No Mercy, Magnus II, Grizzly or Ace Standard.  (sorry for the rant but we are snowed in and I'm already having a touch of cabin fever!)

Magnus 2 blade 125 grain. A 2 blade was recommended for penetration and Magnus broadheads were recommended by numerous trad gangers when I purchased them 7 years ago.

Been switching between the 250 Cutthroat and the 250 grain VPA 3 blade. Have killed 2 deer with the Cutthroats and 10 with the VPAs and an well pleased with both of them.

Pretty much nothing but simmons heads for me wicked blood trails and got a great way to sharpen them

Ace Standard 2 blade glue on, super tough easy to get scary sharp and fly great, many weights, I don't think I'll use anything else

Woodsman Elite 175 gr.

Well.....I have harvested deer with Snuffers, Razor heads, Magnus, Grizzlies and the list goes on. All performed well as expected. However, I always come back to Zwickeys. Imo Zwickey does not make a bad broad head. The last few years I have settled on the Zwickey " no mercy ". WHY do I use Zwickeys? I do lots of stump shooting in summer months. I shoot broad heads and judo points for my stumping. The Zwickeys hold up better under this abuse than any other head I've tried! They fly well, are relatively easy to sharpen and tough as nails. I don't give much consideration to other heads now, finally!

I use Simmons Landsharks because it looks like they were hit with a hatchet. Whenever I shot a mature buck and he went down immediately, I will likely never be looking for another broadhead.

125 grain Magnus Stingers for me. Been shooting them for 3 seasons now and they work flawlessly!

Grizzly broadheads for me. I have a drawer full of all different makes of broadheads. Always liked the profile of the Grizzlies, just could never get them sharp. Then Bill Dunn took over the company and everything changed. The broadheads are built much stronger now, and the factory grind is excellent. Makes sharpening them and maintaining a sharp edge very easy. I swear they fly better then my field points as well. Can't see myself switching anytime soon.

250 Gr VPA 3 blade, Single bevel Grizzlies, and I just purchased some simmons glue on tree sharks. My gosh, they are huge!
This  deer was killed with Grizzly Single bevel. (185 weighted to 250 gr).
   

Those Simmons Tree Sharks are truly lethal!! WOW!!  

This one is with the 250 gr VPA 3 blade.
 

200 grain single-bevel grizzlies!  I love'em.

I also have some 200 grain WW that I like... the ones made by VPA.

Since we're posting pics, this guy was shot with a grizzly this year!

I like trying out different broadheads.  This year I killed deer and hogs with treesharks, grizzlies, abowyer wapiti,and silver flame xl.  They all worked very well.

I've used several different heads over the years and grew to like a wider head, at least 1 1/4".  Heavier heads also shot better for me so I moved toward 160+.  Ace Express 165 was my #1 head for quite a while until even heavier heads started showing up.  Currently shooting Grizzly Kodiak 200 and 235 gr, depending on the setup.  They are narrower than I like, but the single bevel seems to make up for it.  The performance of these heads on game continues to amaze me.  I also carry The Grizzly Instinct 3-blade on occasion.

My arrows have also carried Zwickey Deltas, Woodsmans, Snuffers, VPA Terminators, Ribtec 160 and I would not hesitate to use any of them again if that is what the arrow liked.  I have some Cliff Zwickeys that I am gonna tune up just because they look so cool.

I like the 230 grain kodiak, I have a bunch of deltas too, but I can get the kodiak sharper easier, so I prefer them.

200gn VPA - spin true, 1 piece, almost indestructible, easy to sharpen, 3 blade leaves a good blood trail.

Con -  expensive