Toe Curves:
Toe curves generally have fairly straight heels and mid sections but bend at the toe. Toe curves help give extra speed on your shots. The also can give some last second lift on your shots. Toe curves are very popular among NHL forwards. An example of a toe curve is the Bauer P14. You can check it out at the pattern database from the link below
Mid-Toe Curves:
Mid toe curves are generally mid curves with a very open face. The have the advantage of both a mid curve as well as the toe curve. Mid toe curves are great for stick handling and easy lift.
An example of a mid-toe curve is the Bauer P92.
Mid Curves:
Mid curves are the most popular out of the curves. They are best for stick handlers, passers and snipers.
Mid curves are best for beginners because it helps keep control while stick handling, and accuracy with all types of shots.
An example of a mid curve is the Bauer P88.
Mid-heel Curves:
Like the mid-toe, the mid heel also offers you the best characteristics of both the mid and heel curves. It still had the mid curve for controlled stick handling but with a large open face starting at the heel.
Heel Curves:
Heel curves have the most open faces and are great for chipping pucks into the zone.
Mostly preferred by defensemen.
The heel curve itself give you lift on your shots, more so than toe curve but it takes longer and close in may give you too much lift.