2-place x-country is probably much more a product of
the piloting and conditions then the ship. Guenther
Jacobs bangs out 500k's in a Blaink L13 at Parowan...which
is probably further then most modern plastic two-placers
will ever fly. And since he doesn't have a trailer...the
penalty for a landout is rather high.

Looking at it with a budget in mind....I would order
by price/performance along the lines of...

Blanik
Lark
Grob
DG/Duo
ASH/Nimbus