The normal gen aviation arrival is via Ripon then Fisk to Oshkosh. For most light gen av singles the lower path at 1800 feet msl (1000 agl) and 90 knots is requested. Some people are nervous about flying that speed, even though it is only 15 miles, and worry about other traffic. I tried the speed in my B36 today and with gear down, and 17in, level at 90k was easy. I used half flaps to slow from 140 k, but didnt need any flaps to stay level at 90. about 3* nose up. 90k is probably 1.5 times the stall speed, vso of most light planes.
For twins,etc, there is 2300 and 135 knots. Of course, gear down, look out the window for traffic and make a normal landing.