Cinelli 64's, 5 of my 7 bikes have 'em, one has 66's.
Nitto B115, but you better fit them right. One bike.

Ambrosio Competione de Italia (I think) has a nice slight rando bend and are comfortable.
I had a set of those and really liked them. I should have taken them off for Nittos when I sold the bike.

Sakae World Champion? Road Champion are rando, too. If you can get used to the the cat-eye look, they have great clearance.
I ride the drops, so the top is not an issue.

I really don't like anything else I've tried in the classic dept. I like 3TTT Forma's (ergo) but only because they fit my hand well.

I once thought it was a hassle on the Cinelli bars (26.4 clamp) but I've had little problem at all finding stems for them.

The Cinelli rep and I talked quite a while at the NAHBS. I think he said the 64's were coming in 26.0, and the quill stems.