I prefer the Wendy's pancake. Have had several good years of use out of it until recently when a bolt for the strap vibrated loose inside the truck. Just a simple repair just need a small bolt and time + remembering what I need when I go the home store. I have dropped mine and all manner of things and it's still going strong. I'm planning to buy another one with an auto lens in it but just don't know if I really want to spend the money.
Why I prefer Wendy's? Well, I looked at the other ones and it looks like a piece of plastic heated and bent to form the L of the hood. I just did not like it personally. Seemed like the Wendy's had a bit more craftsmanship in it. I'm happy with it and tip my hat to the folks at Wendy's for a good product. I've attached a few pic's.
Fogging up? I have used mine in cold, hot and such and don't recall it ever fogging up. Now, my miller digital elite, yeah, it has fogged up on me several times and is the reason I have been looking at a speedglas, but that's a different subject. If it were to fog up though there are plenty of anti fogging products out there.
Eye protection-
Well here's my take. The eyeglasses that they sell at Tom Waters on my face for protecting my eyes would be a tiny step above wearing nothing at all. No side protection and look like something John Lennon would have worn. Don't take this wrong, I am not saying anything about the quality of the glasses at Tom Waters just me personally and in my experience it would not take long wearing them and I'd be back at the eye doctor. I have been to see them some 15, 16 times. From the tiny drill for rust spots and even had an on call surgeon "flick" a piece of metal out of my eye with a hypodermic needle, now that was a steady hand.....and she was easy on the eyes too! Literally!!
Everytime I go the doc says, "you need to consider wearing eye protection". When I tell him I was wearing safety glasses, shield or recently goggles, yes I said goggles! Wind blew, piece richochet of my cheek, under the goggle and into my eye. Was able to dig that out at home though! When I used my pancake I had a pair of safety glasses hanging near me, hood up, safety glasses, grind/wire and then off, hood down and weld. Took a few more seconds but kept me from going to the eye doc.
Now, I mostly wear my miller, hate the sun getting in behind me inside the hood but until I get the new Wendy's with the auto lens that's how I'll work it. Don't know what to tell you about the lens though. Seems maybe some are using one from Airgas? Maybe some others will respond with more info. Hope this helps,
Shawn
I do prefer Wendy's over the others I have had, seems a bit more quality and workmanship and price is very reasonable. Now he also makes one that is ANZI Z87 approved for only like 6 bucks more than the regular price. 
