What type of conflict do you like? Which types do you like throwing at your players? What type do you like a GM to throw at you?
For me, I've gotten ho hum about combat. For a long while I was really into social conflict. Right now, I've been having the most fun with skill challenges, once I opened up my view on how to handle them. For instance, a PC was trying to pick a lock but kept failing. Another PC used his sonar system to image the inside of the lock and find the solution. I would have never allowed that before. Now that kind of thing is the stuff of our "Wasn't that great?" conversations.