I think the 35 sounds a little clearer, especially on the bass strings than the 28, at least when playing the regular non- capoed rhythm. Much of the time, they both sound very similar, almost to the point that if you weren't watching and only listening you wouldn't know when you switched guitars. I own an '86 D-35 myself that I bought new. From my own experience, the 28 is maybe a little easier to pick lead on because of the slightly narrower/thinner neck.
I think the 35 sounds a little clearer, especially on the bass strings than the 28, at least when playing the regular non- capoed rhythm. Much of the time, they both sound very similar, almost to the point that if you weren't watching and only listening you wouldn't know when you switched guitars. I own an '86 D-35 myself that I bought new. From my own experience, the 28 is maybe a little easier to pick lead on because of the slightly narrower/thinner neck.