I think most folks will tell you 3hsp. That has been the standard for years and years. For 35 yrs or so I used a delta contractor and made aliving with it. When I thought I needed a new saw, I went with the 2 hsp harvey, as the intro prices were so wonderful. I enjoy my harvey. The delta contractor had a router table on it and a jointech fence, so I could use just one fence for cutting wood and using the router. I have always shied away from using the 2 fence idea as one has to keep taking the router fence off and keep putting it back on.