Had both, torsion under the 27, and now leaf under the 32. Both Eagles.
Torsion is QUIEEEEET and made for a slightly lower sitting ride. Did have to watch when going over the crest of ramps or highways do to the lower sitting trailer that it would hang up at times. Main downside was that the weight is not always evenly distributed between the axles. Each axle is fully independent of each other. Just going over a curb, the lead wheel will absorb alot more of the weight. In fact, when I backed up my driveway, as soon as the lead wheel would go up the curb, the 2nd wheel was off the ground. So the 1 wheel, (bearings, hubs, spindle) was carring all the load on each side as I backed up. Not a very comfortable feeling. Just different tongue heights changes the weight distribution between axles. But it was a sweet trailer and towed very nice.
I ordered my new trailer for the 32 with leak springs just for that reason; the load is always evenly distributed betwen axles regardles of trailer levelness (tounge height) or wheels crawling over curbs and such. But it is noisier when empty.
That said, if I where to order a 3rd trailer, it'd be a leaf spring after having both.