I'm fond of these pens on your list.
2.Visconti Wall Street Piston fill LE
3.Conway stewart Churchill
4.Montagrappa Extra
I saw...and got to play and write with the Wall Street LE at this past years NE Pen Show and I'm kicking myself for not getting it. One super pen in hand and the few minutes I wrote with it, 5-10, was enough to sell me. I picked up an Opera Club instead from the same vendor. This rascal holds a ton of ink too.
The Churchill, what can you say, the flagship of the CS line. This pen is classy,and big, and in the brown color (I have a Duro in brown), wow. Most of my modern CS's needed help from professionals to write the way I want, but it doesn't stop me from buying them. Love the look, feel, and performance once they're tweaked on. Ahh, I don't have one of these either

but intend to soon. It might be my pen after my pen to end all pens gets here. Just a big goobie, (not a word, I just made it up) pen that screams "write something with me". A very light pen I think for it's size.
And if you remember some posts I've made recently, you know I love this pen. Yes, I own one too. The Montegrappa Extra. Mine is the Red Celluloid version and as luck would have it, the prior owner had the nib Binderized. The thing is awesome. OK, the cap screws on with 50 turns. I'm living with that. This is a big, fat, heavy pen, just the way I want it. Weighs more than the other two pens I mentioned. And oh, that big nib is wonderful and even though, like I said, a heavy pen, you should have no problems with control when putting pen to paper.