Which of these do you think would be better for fletching attachment and broadhead attachment?

Barge is fine for fletching, handle wraps and other leather work but do to it's rubbery nature and low bonding strength shouldn't be used for points.
epoxy works great for broadheads but is difficult to remove except by heat which could be high enough to ruin the temper so care has to be used.
You might try the amber high strength hot melt sticks available at most hardware stores, it has a low melting point and is strong enough for points and is more impact resistant than the older ferrule cement and it's cheap.

Do you think gorilla glue will work for points?

For heads I use huntbond hot melt. I get mine from The Nocking Point. Mike is a sponsor here and a great guy to deal with.

The huntbond does not get brittle like the ferrule tite hot melt.

For Fletching I use duco cement, Nothing better in my opinion.

Stiks

If you are fletching wood arrows use Duco Cement, 99 cents a tube at Family Dollar Stores.

If you want your points to stay on use two part 5 minute epoxy.

Barge is a contact leather cement and not any good for any application in arrow making.

Gorilla glue sucks in all archery endeavors and is made for bonding two pieces of wood together that won't be bent or strike logs or rocks.

Eric's right about the Duco but I don't like to wait for it to dry so I use super glue gel for fletchings, hold it in place to the count of ten and get to shooting; not one has come off yet.

You seem to have a desire for permanance with your tips but that's no good when something gets damaged or broken.  The high-strength hot melt glue for tips works great and allows damaged tips or shafts to be replaced.  I haven't seen it fail either.

Just my two cents.

Joel

It takes a couple of seconds with a propane torch to remove a point glued on with hot melt, 6 or 7 seconds to remove a point glued on with 5 minute epoxy.

I lost points in 3D targets with every hot melt glue on the market, have lost none since I switched to epoxy.

Thanks for posting that, Eric.  As I read it I was still thinking about waiting for the Duco to dry and I saw the words "propane torch."  I'm glad I read all the way to the end before saying "WHAAAT?" because in my experience the torch and the feather don't play well together.  I could just see you getting that Duco dry real quick.

Still being a newb I didn't know you could undo the epoxy.

Joel

I agree with Eric on the hot melt for points,
the don't stay on well for me, and for fletching Duco is great. Tip for using Duco: I cut the end off the tube leaving only the threaded section, then use the plastic tube and cap from an empty fletch-tite tube.

A better idea for Duco is to go to the local craft store and get a small glue bottle. They hold about two tubes of Duco, have very small tips, a very secure cap and let you apply a nice even bead of glue. Cost, about a buck. My last one lasted 10 years.