What feels "right" to me is a road bike with a fairly conservative, relaxed, traditional sports-touring frame geometry. I hate to say it, but my crummy old 1970 Peugeot UO-8, which has a reduced-rake aftermarket fork, is fun and stable to ride, although it is just a bit long in the top tube.
I really like my two Capo frames, which are also 72 degrees parallel, but with just the right step over height and top tube length for me to get comfortable. (Top tube length would not be not as big a deal with the Sieger, which has the Ambrosio adjustable-reach stem.) The Modell Campagnolo's plain gauge 531 provides civilized ride qualities without any whippiness or sponginess.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069