The Champ does beautiful three point landings. It will do decent wheel landings but you have to be careful because of the long stroke of the gear, you can dive it down on the landing gear causing all kinds of fun. I towed gliders on the weekends for many years. We would do 30 to 50 landings a day in conventional gear aircraft. I found myself gravitating to three point landings, rarely would do a wheel landing even in cross winds. Never felt the need to. The only accidents I saw when towing were people who had done a wheel landing. The additional speed into a short field and pilots not understanding what was going on. But as others have said you should be proficient in both types of landings.