I have a few favorite wides that work with the AE-1 -- or any FD Canon, really. The one I've probably used the most, and just simply a great lens, is the Vivitar Series 1 28-90mm f/2.8-3.5. It's a varifocal lens (you have to refocus after zooming), but I found that I got used to that pretty quick. I shot mostly slides with it back in the day and had many excellent results. Back then, my FD cameras of choice were the original F-1 and FTb. I didn't care for my AE-1's metering pattern, so it didn't get as much use. Late in its production of S1 lenses, Vivitar came out with a replacement for the 28-90, a 28-105/2.8-3.8. Made by Cosina, it was a good lens, but it wasn't as good as the original. (I own both and I still prefer the 28-90)
Other lenses worth considering are Tamrons. The SP 28-80/3.5-4.2 is a good equivalent of the Vivitar 28-90. Tamron also produced a SP 28-135/4-4.5, a stop slower than the Vivitar, but with the extra range, is often worth it. And Tamron produced a SP 24-48/3.5-3.8, which is very compact, and very useful because of its 24mm setting.
Tokina built an ATX 28-85/3.5-4.5, which generally gets high marks. ATX lenses with red rings have SD (low dispersion) glass, which can be a plus, but I see no red ring on photos of this lens.
The Canon 28-85 is a very late FD production, not nearly as robust as the above lenses, and if I had to wager, I'd bet not as good.