as far as the leg press, i use it everytime i work my lower body at the school weight room. Calf raises, leg press, and one leg press are very good exercises. I dont no about it not being the best for u, I do know its not a good idea to lock ure knees if ure doing a good amount of weight cuz this could blow out ure knees.
But besides that, running, squats, dead lift, calf raises on a step, and i forgot what it was called but u squat down to like a sitting position, where ure leg is bent at the knee at a 90* angle, put ure back against a wall, and hold it there for a while, do a few sets of those and after a while u can start holding a weight in ure arms, this is great for the quads.