I’m partial to the Kit Kat and the Reese’s Peanut Butter Cup (preferably the one with the twin cups in it).
I hate a Zagnut.
What’s your favorite?
Skor and Reese cups (I actually like the miniatures best- best peanut butter to chocolate ratio).
Peanut M&Ms, when I let the candy coating melt and suck off the chocolate and then eat the peanut.
My husband travels to the UK a lot and always brings back Kit Kat bars. They are better there! I discovered that on a trip to York in the 1980s.
Tough call, but I’d say Reese’s Peanut Butter Cups.
I adore Skor candy bars.
O’Henry
I’m not familiar with this particular confection. What’s it all about?
Reese’s or Mr. Goodbar. Tough call.
If we can get into fancy imports, the Lindt people make a chocolate hazelnut wafer bar. It’s something like 600 calories, and, if heaven exists, it’s what people eat there.
Chunky. Those nuts with the rich chocolate and the raisins, ohmygod.
Hard to find though. I have been having luck finding them lately at Block Busters.
I hate mounds and Almond Joy and all that nonsense.
The original 7-up bar.
but will make do with a Mr. Goodbar.
If we’re talking the typical vending machine type candy bar, then I’ve got to go with Twix.
It’s like a Heath Bar. Pretty common in drugstores around here.
Additional Information on the 7-Up Bar:
THE SEVEN UP CANDY BAR. Got its name from having seven connected pieces, each with a different center. The bar came out in the 1930s, before the 7-Up Bottling Company began production of its soft drink - so the Trudeau Candy Company owned the trademark rights to the name. Eventually the 7-Up Bottling Company bought the bar and retired it, so they had exclusive use of the name no matter how it was spelled - Seven Up or 7-Up.
7-Up Bars are pretty much the same as Skybars, but with four sections, not seven.
They’re still available.
I love Zagnuts and Zero bars.
I’m a big fan of Paydays, and Rocky Roads.
At the moment, the Cadbury’s Boost. If you choc-challenged Americans ever see one, snap it up! 
These days I love Milky Ways. I have always hated Three Musketeers. Is that weird? To me, they’re similar but Three Musketeers just is a half baked attempt to be a Milky Way.
Ooooh…hate a Heath Bar. They hurt my teeth.
I also love Paydays, as well as Mounds and Snickers. Rarely eat them though. Also, Reese’s peanut butter cups can be great at times.
Strangely, that’s exactly what I had for breakfast this morning. It’s also been decided that a Kit Kat is acceptable breakfast food because it’s not really candy candy. It’s more of a biscotti.
Hershey’s Special Dark, Mr. Goodbar and Snickers.