I'd have to say redirects, even the most simple of redirects are just so satisfying. I remember once I was wide of the net and my defender shot wide and low, coming straight for me, I redirected it enough to hit the inside of the right post, slide across the goal line, hit the left post, and go in. It was probably my favorite goal ever. Pretty much mostly luck but still awesome.
Of course a pretty roofed wrister is nearly unbeatable....but I love popping it in on the doorstep after battling with the defensemen. Nothing takes the energy out of a team (and a goalie) when you score at them at the top of the crease.
I think that goal I mentioned was my favorite, but my favorite type of goal to consistently score is one from hardwork.. i.e work off the forecheck, backcheck pucksteal type deal. My reputation on my team and league is of a hardworker so it pays off.
one timers are fun, and so is any goal bar down. But my personal favorite is coming in on the left side (im right handed) on a 2 on 1, put the puck in a position where i can pass or shoot, and look pass the whole way. Then no-look the shot and score.
While I love breakaway goals, I love wristers from the slot much more. Whether it's a one timer, a rebound, or me taking the puck in from the boards and wristing it, beating the goalie on a clean wrister is a wonderful feeling.