Kodak, Fuji, and Ilford are the "big three" that remain. I've never had a quality issue with anything from one of these companies. Rollei also sells pretty technically sound film based on the fact that I have only had one issue, and it was an assembly issue, not a problem with the base or the emulsion. I had several rolls of 120 in which the film was taped in the wrong place on the paper, resulting in my shooting on to the backing paper for about one frame. Other films worked correctly in the same film back, and I got the rolls replaced by Freestyle. I'm not really sure about Foma. Efke/Adox are not up to par with the big three in terms of quality control IME.