Many of them. I've been experimenting some after getting some really beautiful negatives a few years ago on t-grained films. Also, using different films and developer combos. I had all but given up 35mm for 120, but I have an overseas trip coming up, specifically to photograph! So, I'll take my little Fuji 645, but I also got out the 35mm gear for portability and weight. I really wanted to settle on one film to further simplify things.
Anyway, long story short: the winner turned out to be Tri-X and D76. (with a little Delta 100 along, too)
Well...it is "winter" here on the Left Coast, and although the rainy season has yet to return in its usual form (the sun has actually put in a few appearances here and there), I have more-or-less switched exclusively to black and white mode for the next couple of months . So, while I have been shooting a bit of FP4+ with the Hasselblads, most days it is the F4s (still trying to establish a relationship with the camera - two attempts to give it away fell flat) loaded with HP5+/Tri-X. Now to convince myself to start tackling the backlog of film in the freezer that needs to be processed; perhaps a few weeks of unrelenting rain will be needed to keep me housebound on the weekends...
Some Nikons (F6, F5, F3P, F3HP, F2ASx4, F2A, F2 and a D800), with Ai/Ais Nikkors ranging from 15mm to 600mm; Leicas (M6X2), with Leitz glass from 28 to 90mm and a pair of Hasselblads (500c/ms), with Zeiss glass from 50 to 250mm. A bit of stuff for a no-longer practicing professional, but justifiable for a now-converted hobbyist who absolutely loves taking/making pictures.
Last weekend I shot an expired (2005) roll
of Kodak Portra 400NC in my Mamiya C3. I prefer shooting B&W but my husband likes me to shoot color, so I decided to capture some color while there's still some to be had and while my last batch of Flexicolor C-41 chemistry for the year still has its mojo.