There was a time (as the late Godfather of soul used to say), when Jim's served Slotkowski sausages. This was the original "J.T." polish that became a part of Chicago history. Then as now, Maxwell Express served Vienna. In those days, there was really no contest. Jims was always busier, often with a line at all three windows, and cars double parked at all hours. Maxwell express was a much smaller stand, often getting the overflow from Jim's if the lines got too long (Though it always had its fans).
I liked Jims better myself. It wasn't that I thought the Slotkowski polish was a superior product, but it did seem to come out better after it got the flat top grill under a pile of onions treatment than the Vienna did , at least most of the time. Jim's pork chops were better too. I stopped by a lot (sometimes for breakfast, and I wasn't alone either). Whichever camp you were in, there was no question they were very different places.
When Slotkowski went out of business Jim's switched to Vienna. From that point on, most of the significant differences between these longtime neighbors and competitors seemed to disappear. Sure, on any given day you might get a better polish at one place or the other but it seems to me that this mostly reflects the effect of ancillary factors, like how long and how evenly the sausage was cooked, and (just as important) how the onions were done, as opposed to being a reflection of any real stylistic or quality difference between the stands.
Now, I realize that just because both places use the same sausage doesn't mean that one can't be significantly better or different than the other. After all, Chicago is filled with hot dog stands almost all using some variation of the same ingredients and some are great, while others stink. The central issue here is that there doesn't seem to be any real
pattern. The clear winner on one visit might come out second best on the
next. Between using the exact same stuff and doing everything the exact same way, these places have become pretty much indistinguishable.
The whole point is rather moot anyway, because at this point neither one is consistiently very good (though I'm not sure I fully understand why). A char polish ("JT style", with mustard, grilled onions and hot peppers) from Weiners circle or Wolfy's will almost certainly be better than what you're likely to get from either Jims or Maxwell Express these days. But if it's three A.M. and you hit a good one, either can stll be a fine bedtime snack. I still think the pork chops are better at Jims, so I'm more likely to go there . Of course, if the line's too long, I might just go next door.
Lacking fins or tail
The Gefilte fish
swims with great difficulty.
Jewish haiku.