As far as color films go, I've been shooting Kodak for almost 30 years... well, longer if you count the snapshots I used to make before I got "serious" about photography.
My first favorite was Vericolor VPS160. Beautiful film, especially for portraits! Then I think there was a 400 version, then a "commercial" version -VPC- with more contrast, and the film continued to evolve and improve.
Then it was replaced with Portra, that came in four flavors. The NC was supposedly the closest to Vericolor, so that's what I shot. And it was good.
Then, in shooting ballet, I was asked to shoot color instead of B&W, and needed a fast film. I shot Supra 400 and pushed it, and then later Supra 800. They were both good films. I don't think they are still around, and I guess now it's just Portra, which has been improved yet again.
So I guess to answer your question, I've been "going steady" with Kodak in color films, though in B&W I have gone over to Iflord.