I've decided that I'd print all my very best images on 20x24, a few months ago. I'm a 35mm shooter. And since then, I've printed about 150 20x24 FB prints.
The results are outstanding and sharp. Just excellent.
OK, I admit to using a Focomat IIC and a brand new and well performing 60mm focotar f4.5 and shoot almost exclusively with Leica's finest lenses. But even with the old glass and some Nikkors I'm quite blown away. But I'm always after a feeling, a mood, a character rather then perfection.
Who says that 35mm film cannot go that big? Here's a shot of a 20x24 print shot with a F100 + 105 f2.5.