I'll chime in for the ASW-19. I'd tried to get a LS-4, but couldn't
find one at the time. The ASW-19 was described to me by a multi-time
US champion as 98% of the LS-4 at 75% of the price. The only potential
downside is the CG hook for aerotowing, but truthfully, I never had a
problem with it.

If you can't find a ASW-19 or a LS-4, and you can swing the extra
cash, there are a number of LS-8s for sale on Wings & Wheels right
now. I can attest that they are nice, easy to fly aircraft, too, plus
they have incredible performance for when you start flying contests.

-John