LS-4 vs ASW-20

Hi,
I'd like to hear about the people who were able to compare the
performance of an LS-4 with an ASW-20 in weak, average and/or strong
conditions. Which climbs best? Which glides best? By what kind of
advantage (is one glider really better than the other, or just average?)
Overall, which is the best machine and is it a lot better or just slightly
better?
If one can point me out to some polar curves for both gliders, I'd be
very happy.
Thank you!