OK, I'll play.
For me, a variation of the classic Mauser 98 pattern. Exact calibre is not that important.....so say something between 7x57 and 35 Whelen. Wait, gee, the 7.92 x 57JS fits that criteria, so let's go with that. As for barrel, a medium weight barrel no longer than 20" (I like carbines). Sights - IRONS - either something similar to classic Express Sights, or my own forward aperture/ rear U-notch design. Finish - classic deep bluing, though I have nothing against parking or any of the more modern finishes. Stock - GOT to be wood - so, let's say walnut, with a nice classic shape, with the forend terminatiing in a nicely shaped schnabel. Action details - classic Mauser 98, with the possible exception of a different (more user friendly) safety.
Hmmm. Well, I guess I've just described my own Yugo M48 sporter carbine. Really, for MY taste, no one has ever come up with anything better. "Old-fashioned" it may be.....but it does for me nicely.