I use several film developers, Ilfosol3, Microphen or D76 depending on what film. I need to get some Rodinal and give it a try.
1:100 stand developing, besides being insanely economical, (and you can even get away with a plain water rinse instead of stop bath, though stop is cheap enough I always used it) also produces some really nice looking landscapes and portraits, it just depends on what you're going for. YMMV, especially with any film faster than ~ISO800. Most of mine came from west Texas and southeast New Mexico in August, so 100-400 was plenty. Google image search for "Rodinal stand developed" should turn up lots of samples.