I fly a fixed pitch RV9A. First I set my idle mixture to get a 650 rpm idle speed. Any higher makes airplane float longer.
Abeam number I pull power idle and make sure the throttle is all the way out. I hold the nose up to maintain altitude and quickly bleed the speed off to 90 kts. I put down the first notch of flap (with flap controller set to 10 degree). Turn base, reduce to 80 kts and anther 10 degrees (sometimes I will put all down). Final is 70 kts. Over the threshold down to 65 kts. Keep nose high until there is no more elevator. If I still have a long way from the turn off, rise the flap to help keeping the nose wheel up. Adding some power helps too. I use the 90-80-70 numbers since it is easy to remember and also help me to get to the ground faster (compare using 65 all the way).
Of course it also depends on the size of the pattern. If flying too close, I will slip while keep above 70 kts. When practiced enough, one can slip it all the way to the runway. It helps bleeding off the speed and altitude your pick.
Since I moved to Florida I practiced formation a lot with a mixed group of airplanes. My speed is determined by the slowest airplane in the flight. Often it is a Cessna 140 at 90-100 mph. At that speed I am running 1600-1800 rpm. I usually put down a little flap for the entire flight. Flying with other RVs or faster airplanes is much easier then with the slow ones.
For entering pattern I have no issue to approach 45 at 130 kts. I can reduce power to slow down to 110 kts for the downwind. On IFR approaches I usually fly 120-130 kts until FAF. RV9A is more stable at higher speed (than, say 90 kts). Slow down to 90 kts 2 or 3 miles out and continue to slow down in order to have a gentle touch down.
I am sure many people do it differently. However, so far my numbers have worked for me. Use what suggested here as a base and find what you feel comfortable with. Of course the hard limits should not be passed.