The Blades boss believed his skipper is back on top form having bagged a brace in the Friday night victory at Burton.
"Billy was back to his best in the second-half against Hull and was disappointed not to have scored, but he got two tonight and was a real threat in the first-half.
"I'm not bothered about him scoring a hat-trick, I'm bothered about winning and Brooksy was itching to get on the pitch and make an impression.
"When we got the ball in good areas we opened them up at will and Leon's goal is an excellent finish after some very good play, at a place where teams will struggle."
When asked if the league position was realistic, Wilder retorted: "I'm not daft I know it's only November and there are 29 games to go but a lot of teams would swap with us right now.
"We're frontrunners, we enjoy being at the front leading the race, rather than chasing.
"We've had the most wins in the division, but we're grounded and I know what my players will give me. We have an opportunity each time we step out onto the pitch."