My vote goes to the Dream Weaver. I love flying mine in both Vintage FAI and A Nos.I change engines from a Green Head .15 to an OS Max 3.Hard little son of a gun to build. Have some instant CA available just in case you break or crack one of the thin ribs.
The most beautiful design? Well obviously the Ollie and the Satellite are takeoffs of Carl Goldberg’s Sailplane, and the more popular Zipper. You can’t say that either the Ollie or Satellite are originals. As far as practical and good flying NOS models: the Ramrod and T-Bird are ugly originals of the period, but they are beautiful in the air going up in thermals. The Hustler, a late NOS model and modification of the T-Bird is a little more elegant. The Civy Boy was pretty I thought, but with that rearward CG, can be remembered most frequently buried in the turf!