Six Pack requires two things
1. Very little to No fat on your body (meaning lots of running and weight lifting)
2. Strong abs (crunches and all that junk)
Doing crunches and such won't give you a six pack unless you lose the fat that's covering the muscles and crunches won't do jack to make you lose the fat. Running helps the most (look into HIIT, it's all over the place on the web and in this forum) and if coupled with weight lifting, helps even more. Muscle requires more calories to sustain than fat does, therefore the more muscle you have, the more calories you burn naturally. Also note that there's no such thing as spot burning of fat. You can't just focus on only burning fat around your stomach. You have to burn fat all over your body in order to get rid of any kind of fat around your stomach if you have any.
Strong legs = Squats, Leg Press the most. There's other things like lunges, deadlifts and all that fun stuff, but Squats are the best and Leg Press is a nice way to switch it up. Deadlifts are also great for the back, glutes, ab region and pretty much the whole body.
Check this out to learn more about the benefits of deadlifting
http://www.bodybuilding.com/fun/drobson101.htm
Arms = There's so much you can do for arms. Just look it up.
Too bad I don't actually do this stuff on a regular basis, but I've been told and read in a lot of places that this is how to do it.
Just make a routine or ask someone who works out a lot help you make one up and you should be able to get started.
Although just a note for you. You don't need a "six pack" to be better. Strong abs is what you need, six pack or not. Strong arms should be the least of your priorities although strong wrists and forearms are a plus. Also leg strength is your most important focus for hockey followed by core strength (abs, lower back, etc.), make sure you know that. Upper body strength doesn't do you that much good in hockey unless you're an enforcer.