My vote is first the Ultra Sport 40, and second the Sig Kougar.

I built my first Kougar in the early 80's. Flew 2 years and crashed it. Then built a second one which I flew until I built the Ultra Sport in 1990. It was just a couple of weeks ago I took the engine and radio out of the Ultra Sport - never a crash in 17 years of flying it. But age caught up with it. It was painted with Formula U and by now there were hireline cracks all over and the paint had bubbled were the exhaust hit. Also hanger rash had built up<G>.

I have now ordered the Pulse XT 60 based on comments here on RU, studing the manual, and seeing the ad for it in the mags. I may also try to rehab the second Kougar which I still have.