Eggs Benedict is my favorite. Some five or six years ago, I worked very hard on trying every EB at every restaurant I visited (that had it, of course). Ten pounds later, I had to stop, so now it's a "sometime food."
I've had Toast's prosciutto version and the vegetable version, and I didn't care for either. What I mean is that I was actually angry after eating them. There was
stuff (diced tomatoes, and that kind of thing) in the hollandaise. It is my belief that hollandaise is perfect on its own, and needs no embellishment, and additions only detract from the texture and delicate balance of flavors. I'm fine with changing the meat and/or substituting spinach, etc. but I cannot abide messing with the sauce.
Eggs Flo at Flo: Big slab of roasted turkey on one, and ham on the other. It's too huge to eat the whole thing, but delicious and perfectly done. Tre Kronor's is very nice, but never stood out for me. Bite used to have a good one, both traditional and florentine, but I started to get overcooked yolks and undersauced dishes so I stopped going. Zephyr has a passable version, but nothing special. Tweet was my most recent experience with EB, and it was very nice, but I believe it used biscuits and not English muffins, which detracts for me because muffins are so much better for absorption. There were more, but nothing dramatically one way or another. Oh, except once on a road trip with my mother, I had Eggs Benedict at an Azar's Big Boy, and it was a nightmare. Paprika like a blanket over the whole thing. I shudder as I think of it.
Though it's a mild pain in the ass, making it at home yields much better results.